{"id":3078,"date":"2025-09-18T20:42:10","date_gmt":"2025-09-18T18:42:10","guid":{"rendered":"https:\/\/dadb.com\/in\/?page_id=3078"},"modified":"2025-10-21T09:41:15","modified_gmt":"2025-10-21T07:41:15","slug":"billdesk-payment","status":"publish","type":"page","link":"https:\/\/dadb.com\/in\/billdesk-payment\/","title":{"rendered":"BillDesk Checkout"},"content":{"rendered":"<!--blockstudio\/blockstudio\/frame-layout--><div id=\"fl-blockstudio-a6ed59def04e\" class=\"fl px-frame-layout\" data-frame=\"lightbgbox\" data-layout=\"layout-reduced\" data-margin-before=\"default\" data-margin-after=\"default\">\n    <div class=\"inner\">\n        <div>\n\n<div id=\"billdesk-container\"><\/div>\n<div class=\"container py-5\">\n  <form id=\"paymentForm\" class=\"needs-validation\" novalidate>\n    <h3 class=\"mb-4 text-center text-brand\">Payment Form<\/h3>\n\n    <!-- College -->\n    <div class=\"mb-3\">\n      <label for=\"college\" class=\"form-label\">College<\/label>\n      <select id=\"college\" name=\"college\" class=\"form-select\" required>\n        <option value=\"\">Loading colleges&#8230;<\/option>\n      <\/select>\n      <div class=\"invalid-feedback\">Please select your college.<\/div>\n    <\/div>\n\n    <!-- Course -->\n    <div class=\"mb-3\">\n      <label for=\"course\" class=\"form-label\">Course\n        <span id=\"courseLoader\" class=\"ms-2 d-none\">\n          <div class=\"spinner-border spinner-border-sm text-warning\" role=\"status\"><\/div> <\/span><\/label>\n      <select id=\"course\" name=\"course\" class=\"form-select\" required disabled>\n        <option value=\"\">Select Course<\/option>\n      <\/select>\n      <div class=\"invalid-feedback\">Please select your course.<\/div>\n    <\/div>\n\n    <!-- First + Last Name -->\n    <div class=\"row\">\n      <div class=\"col-md-6 mb-3\">\n        <label for=\"firstName\" class=\"form-label\">First Name<\/label>\n        <input type=\"text\" id=\"firstName\" name=\"firstName\" class=\"form-control\" pattern=\"^[A-Za-z\\u00C0-\\u024F]{1,15}(?: [A-Za-z\\u00C0-\\u024F]{1,15})*$\" required>\n        <div class=\"invalid-feedback\">First name is required (letters only).<\/div>\n      <\/div>\n      <div class=\"col-md-6 mb-3\">\n        <label for=\"lastName\" class=\"form-label\">Last Name<\/label>\n        <input type=\"text\" id=\"lastName\" name=\"lastName\" class=\"form-control\" pattern=\"^[A-Za-z\\u00C0-\\u024F]{1,15}(?: [A-Za-z\\u00C0-\\u024F]{1,15})*$\" required>\n        <div class=\"invalid-feedback\">Last name is required (letters only).<\/div>\n      <\/div>\n    <\/div>\n\n    <!-- Contact + Email -->\n    <div class=\"row\">\n      <div class=\"col-md-6 mb-3\">\n        <label for=\"contact\" class=\"form-label\">Contact<\/label>\n        <input type=\"text\" id=\"contact\" name=\"contact\" class=\"form-control\" pattern=\"\\d{10}\" required>\n        <div class=\"invalid-feedback\">Enter a valid 10-digit contact number.<\/div>\n      <\/div>\n      <div class=\"col-md-6 mb-3\">\n        <label for=\"email\" class=\"form-label\">Email<\/label>\n        <input type=\"email\" id=\"email\" name=\"email\" class=\"form-control\" pattern=\"^[a-zA-Z0-9._%+\\-]+@[a-zA-Z0-9.\\-]+\\.[a-zA-Z]{2,}$\" required>\n        <div class=\"invalid-feedback\">Enter a valid email address.<\/div>\n      <\/div>\n    <\/div>\n\n    <!-- Address -->\n    <div class=\"mb-3\">\n      <label for=\"address\" class=\"form-label\">Address<\/label>\n      <input type=\"text\" id=\"address\" name=\"address\" class=\"form-control\" pattern=\"^[0-9A-Za-z][0-9A-Za-z .,\\-#]{5,}$\" required>\n      <div class=\"invalid-feedback\">\n        Address must be at least 6 characters, start with a letter\/number, and may include spaces,\n        commas, dots, dashes, #, or accented letters.\n      <\/div>\n    <\/div>\n\n    <!-- Pincode, City, State -->\n    <div class=\"row\">\n      <div class=\"col-md-3 mb-3\">\n        <label for=\"pincode\" class=\"form-label\">Pincode<\/label>\n        <input type=\"text\" id=\"pincode\" name=\"pincode\" class=\"form-control\" pattern=\"^[1-9][0-9]{5}$\" required>\n        <div class=\"invalid-feedback\">Enter a valid 6-digit pincode.<\/div>\n      <\/div>\n      <div class=\"col-md-3 mb-3\">\n        <label for=\"city\" class=\"form-label\">City\n          <span class=\"ms-2 d-none\" id=\"cityLoader\">\n            <div class=\"spinner-border spinner-border-sm text-warning\" role=\"status\"><\/div> <\/span><\/label>\n        <input type=\"text\" id=\"city\" name=\"city\" class=\"form-control\" required>\n        <div class=\"invalid-feedback\">City is required.<\/div>\n      <\/div>\n      <div class=\"col-md-3 mb-3\">\n        <label for=\"state\" class=\"form-label\">State\n          <span class=\"ms-2 d-none\" id=\"stateLoader\">\n            <div class=\"spinner-border spinner-border-sm text-warning\" role=\"status\"><\/div> <\/span><\/label>\n        <input type=\"text\" id=\"state\" name=\"state\" class=\"form-control\" required>\n        <div class=\"invalid-feedback\">State is required.<\/div>\n      <\/div>\n      <div class=\"col-md-3 mb-3\">\n        <label for=\"country\" class=\"form-label\">Country\n          <span class=\"ms-2 d-none\" id=\"countryLoader\">\n            <div class=\"spinner-border spinner-border-sm text-warning\" role=\"status\"><\/div> <\/span><\/label>\n        <input type=\"text\" id=\"country\" name=\"country\" class=\"form-control\" required>\n        <div class=\"invalid-feedback\">Country is required.<\/div>\n      <\/div>\n    <\/div>\n\n    <!-- Semester + Department + University-->\n    <div class=\"row\">\n      <div class=\"col-md-4 mb-3\">\n        <label for=\"semester\" class=\"form-label\">Semester<\/label>\n        <select id=\"semester\" name=\"semester\" class=\"form-select\" required>\n          <option value=\"\">Select Semester<\/option>\n          <option value=\"1\">1<\/option>\n          <option value=\"2\">2<\/option>\n          <option value=\"3\">3<\/option>\n          <option value=\"4\">4<\/option>\n          <option value=\"5\">5<\/option>\n          <option value=\"6\">6<\/option>\n          <option value=\"7\">7<\/option>\n          <option value=\"8\">8<\/option>\n        <\/select>\n        <div class=\"invalid-feedback\">Select your semester.<\/div>\n      <\/div>\n      <div class=\"col-md-4 mb-3\">\n        <label for=\"department\" class=\"form-label\">Department<\/label>\n        <select id=\"department\" name=\"department\" class=\"form-select\" required>\n          <option value=\"\">Select Department<\/option>\n          <option value=\"Btech\/BE Computer Science Engineering\">\n            Btech\/BE Computer Science Engineering\n          <\/option>\n          <option value=\"Btech\/BE IT\">Btech\/BE IT<\/option>\n          <option value=\"Btech\/BE Mechanical Engineering\">Btech\/BE Mechanical Engineering<\/option>\n          <option value=\"Btech\/BE Electronics and Communication\">\n            Btech\/BE Electronics and Communication\n          <\/option>\n          <option value=\"Btech\/BE Electrical Engineering\">Btech\/BE Electrical Engineering<\/option>\n          <option value=\"Btech\/BE Electrical\">Btech\/BE Electrical<\/option>\n          <option value=\"Btech\/BE Electronics\">Btech\/BE Electronics<\/option>\n          <option value=\"Btech\/BE Civil Engineering \">Btech\/BE Civil Engineering<\/option>\n          <option value=\"Btech\/BE Biotechnology\">Btech\/BE Biotechnology<\/option>\n          <option value=\"BSc. Biotechnology\">BSc. Biotechnology<\/option>\n          <option value=\"Btech\/BE Electrical and Electronics\">\n            Btech\/BE Electrical and Electronics\n          <\/option>\n          <option value=\"BCA\">BCA<\/option>\n          <option value=\"MCA\">MCA<\/option>\n          <option value=\"MBA\">MBA<\/option>\n          <option value=\"Others\">Others<\/option>\n        <\/select>\n        <div class=\"invalid-feedback\">Select your department.<\/div>\n      <\/div>\n      <div class=\"col-md-4 mb-3\">\n        <label for=\"university\" class=\"form-label\">University (Optional)<\/label>\n        <input type=\"text\" id=\"university\" name=\"university\" class=\"form-control\">\n      <\/div>\n    <\/div>\n\n    <!-- Coupon -->\n    <div class=\"mb-3\">\n      <label for=\"coupon\" class=\"form-label\">Coupon Code (Optional)<\/label>\n      <div class=\"input-group\">\n        <input type=\"text\" id=\"coupon\" name=\"coupon\" class=\"form-control\">\n        <button type=\"button\" id=\"validateCoupon\" class=\"btn btn-outline-primary btn-brand\">\n          Validate\n        <\/button>\n      <\/div>\n      <small id=\"priceText\" class=\"text-success fw-bold d-block mt-2\">Course Price: &#8377; 2950<\/small>\n    <\/div>\n\n    <!-- Submit -->\n    <div class=\"d-grid\">\n      <button type=\"submit\" class=\"btn btn-lg btn-primary btn-brand\" id=\"payNowBtn\">Pay Now<\/button>\n    <\/div>\n  <\/form>\n<\/div>\n<!-- Generic Popup Modal -->\n<div class=\"modal fade\" id=\"genericModal\" tabindex=\"-1\" aria-labelledby=\"genericModalLabel\" aria-hidden=\"true\">\n  <div class=\"modal-dialog modal-dialog-centered\">\n    <div class=\"modal-content\">\n      <div class=\"modal-header\">\n        <h5 class=\"modal-title\" id=\"genericModalLabel\">Notification<\/h5>\n        <button type=\"button\" class=\"btn-close\" data-bs-dismiss=\"modal\" aria-label=\"Close\"><\/button>\n      <\/div>\n      <div class=\"modal-body\" id=\"genericModalBody\">\n        <!-- Dynamic message goes here -->\n      <\/div>\n      <div class=\"modal-footer\">\n        <button type=\"button\" class=\"btn btn-primary btn-brand\" data-bs-dismiss=\"modal\">OK<\/button>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- Bootstrap JS -->\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/bootstrap@5.3.3\/dist\/js\/bootstrap.bundle.min.js\"><\/script>\n\n<script>\n  function showPopup(message, title = \"Notification\") {\n    document.getElementById(\"genericModalLabel\").textContent = title;\n    document.getElementById(\"genericModalBody\").innerHTML = message;\n    const genericModal = new bootstrap.Modal(document.getElementById(\"genericModal\"));\n    genericModal.show();\n  }\n  const payNowBtn = document.getElementById(\"payNowBtn\");\n  function updatePayNowButton(price) {\n    payNowBtn.innerHTML = `Pay Now (&#8377; ${price})`;\n  }\n\n  document.addEventListener(\"DOMContentLoaded\", async () => {\n    const form = document.getElementById(\"paymentForm\");\n    const collegeSelect = document.getElementById(\"college\");\n    const courseSelect = document.getElementById(\"course\");\n    const pincodeInput = document.getElementById(\"pincode\");\n    const cityInput = document.getElementById(\"city\");\n    const stateInput = document.getElementById(\"state\");\n    const countryInput = document.getElementById(\"country\");\n    const couponBtn = document.getElementById(\"validateCoupon\");\n    const priceText = document.getElementById(\"priceText\");\n    let basePrice = 2950;\n    let discountedPrice = 2950;\n    let couponApplied = false;\n    let colleges = {};\n\n    \/\/ &#9989; Prefill form fields from URL query params\n    const params = new URLSearchParams(window.location.search);\n    params.forEach((value, key) => {\n      const field = form.elements[key];\n      if (field) {\n        field.value = value;\n\n        \/\/ trigger course loading if college was pre-filled\n        if (key === \"college\") {\n          const event = new Event(\"change\");\n          field.dispatchEvent(event);\n        }\n      }\n    });\n\n    const collages = {\n      \"AISECT University, hazaribagh\": {\n        category: \"AISECT University\",\n        paymentMode: \"DADB\",\n      },\n      \"Ajeenkya DY Patil University\": {\n        category: \"Ajeenkya DY Patil\",\n        paymentMode: \"College\",\n      },\n      \"Amruthvahni College of Engineering\": {\n        category: \"Amruthvahni College\",\n        paymentMode: \"DADB\",\n      },\n      \"Assam Don Bosco University (ADBU)\": {\n        category: \"Assam Don Bosco\",\n        paymentMode: \"DADB\",\n      },\n      \"Atria Institute of Technology\": {\n        category: \"Atria Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Bhabha University\": {\n        category: \"Bhabha University\",\n        paymentMode: \"DADB\",\n      },\n      \"Brainware Univeristy\": {\n        category: \"Brainware University\",\n        paymentMode: \"DADB\",\n      },\n      \"Chandigarh Group of Colleges\": {\n        category: \"Chandigarh Group\",\n        paymentMode: \"DADB\",\n      },\n      \"DR. CV Raman University - Bihar\": {\n        category: \"CV Raman Bihar\",\n        paymentMode: \"DADB\",\n      },\n      \"DR. CV Raman University - Bilaspur\": {\n        category: \"CV Raman Bilaspur\",\n        paymentMode: \"DADB\",\n      },\n      \"DR. CV Raman University - Khandwa\": {\n        category: \"CV Raman Khandwa\",\n        paymentMode: \"DADB\",\n      },\n      \"Dr. DY Patil College of Engineering & Innovation\": {\n        category: \"DY Patil\",\n        paymentMode: \"DADB\",\n      },\n      \"Dr. DY Patil Institute of Management & Enterpreneurship Development\": {\n        category: \"DY Patil Institute of Management\",\n        paymentMode: \"DADB\",\n      },\n      \"Dr. J. J. Magdum College Of Engineering\": {\n        category: \"JJ Magdum\",\n        paymentMode: \"DADB\",\n      },\n      \"Future University\": {\n        category: \"Future University\",\n        paymentMode: \"DADB\",\n      },\n      \"GIFT Autonomous College\": {\n        category: \"GIFT Autonomous\",\n        paymentMode: \"DADB\",\n      },\n      \"Gita Autonomous College\": {\n        category: \"Gita Autonomous\",\n        paymentMode: \"DADB\",\n      },\n      \"GNA University\": {\n        category: \"GNA University\",\n        paymentMode: \"College\",\n      },\n      \"GOEL Institute of Technology and Management\": {\n        category: \"GOEL Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Gokaraju Rangaraju Institute of Engineering and Technology\": {\n        category: \"Gokaraju Rangaraju Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Govindrao Wanjari College of Engineering\": {\n        category: \"Govindrao Wanjari College\",\n        paymentMode: \"DADB\",\n      },\n      \"ICFAI University\": {\n        category: \"ICFAI University\",\n        paymentMode: \"DADB\",\n      },\n      \"IES College of Technology, Bhopal\": {\n        category: \"IES College of Technology\",\n        paymentMode: \"DADB\",\n      },\n      \"IES University, Bhopal\": {\n        category: \"IES University\",\n        paymentMode: \"DADB\",\n      },\n      \"IFTM University\": {\n        category: \"IFTM\",\n        paymentMode: \"DADB\",\n      },\n      \"Indira College of Engineering and Management\": {\n        category: \"Indira College\",\n        paymentMode: \"DADB\",\n      },\n      \"Jayamukhi Institute of Technological & Sciences\": {\n        category: \"Jayamukhi Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Joginpally B.R. Engineering College\": {\n        category: \"Joginpally College\",\n        paymentMode: \"DADB\",\n      },\n      \"JSPM's Jayawantrao Sawant College of Engineering\": {\n        category: \"JSPM's Jayawantrao Sawant College\",\n        paymentMode: \"DADB\",\n      },\n      \"JSPM'S Rajarshi Shahu College of Engineering\": {\n        category: \"JSPM'S\",\n        paymentMode: \"DADB\",\n      },\n      \"Kalinga University, Raipur\": {\n        category: \"Kalinga University\",\n        paymentMode: \"College\",\n      },\n      \"KDK College of Engineering\": {\n        category: \"KDK College\",\n        paymentMode: \"DADB\",\n      },\n      \"KJ College of Engineering\": {\n        category: \"KJ College\",\n        paymentMode: \"DADB\",\n      },\n      \"KK Wagh Institute of Engineering\": {\n        category: \"KK Wagh\",\n        paymentMode: \"College\",\n      },\n      \"Lingaya's Vidhyapeeth\": {\n        category: \"Lingaya's Vidhyapeeth\",\n        paymentMode: \"DADB\",\n      },\n      \"Manav Rachna International Institute of Research and Studies\": {\n        category: \"Manav Rachana\",\n        paymentMode: \"DADB\",\n      },\n      \"MES College of Engineering and Technology\": {\n        category: \"MES College\",\n        paymentMode: \"DADB\",\n      },\n      \"MET Bhujbal College of Engineering\": {\n        category: \"MET Bhujbal Coe\",\n        paymentMode: \"DADB\",\n      },\n      \"Methodist College of Engineering & Technology\": {\n        category: \"Methodist College\",\n        paymentMode: \"DADB\",\n      },\n      \"MGM University\": {\n        category: \"MGM University\",\n        paymentMode: \"DADB\",\n      },\n      \"Netaji Subhash University\": {\n        category: \"Nethahi Subhash\",\n        paymentMode: \"DADB\",\n      },\n      \"Paavai Engineering College\": {\n        category: \"Paavai Engineering College\",\n        paymentMode: \"DADB\",\n      },\n      \"PES College Of Engineering\": {\n        category: \"PES College\",\n        paymentMode: \"College\",\n      },\n      \"Ponnaiyah Ramajayam Institute of Science and Technology\": {\n        category: \"Ponnaiyah Ramajayam\",\n        paymentMode: \"DADB\",\n      },\n      \"PR Pote College of Engineering\": {\n        category: \"PR Pote\",\n        paymentMode: \"DADB\",\n      },\n      \"Pratiksha Group of Institutes\": {\n        category: \"Pratiksha Group\",\n        paymentMode: \"DADB\",\n      },\n      \"Priyadarshini Group of Institutions\": {\n        category: \"Priyadarshini Group\",\n        paymentMode: \"DADB\",\n      },\n      \"Rabindranath Tagore University, Raisen\": {\n        category: \"Rabindranath Tagore\",\n        paymentMode: \"DADB\",\n      },\n      \"RB University, Nagpur\": {\n        category: \"RB University\",\n        paymentMode: \"DADB\",\n      },\n      \"RIMT University\": {\n        category: \"RIMT\",\n        paymentMode: \"DADB\",\n      },\n      \"RR Institute of Technology\": {\n        category: \"RR Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Rungta International Skills University\": {\n        category: \"Rungta International\",\n        paymentMode: \"DADB\",\n      },\n      \"SAGE University\": {\n        category: \"SAGE University\",\n        paymentMode: \"College\",\n      },\n      \"Sambhram Institute of Technology\": {\n        category: \"Sambhram Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Sanjivani College of Engineering\": {\n        category: \"Sanjivani College of Engineering\",\n        paymentMode: \"DADB\",\n      },\n      \"Sanjivani University\": {\n        category: \"Sanjivani University\",\n        paymentMode: \"DADB\",\n      },\n      \"Sarala Birla University\": {\n        category: \"Sarla Birla\",\n        paymentMode: \"DADB\",\n      },\n      \"Saranathan College of Engineering\": {\n        category: \"Saranathan College\",\n        paymentMode: \"DADB\",\n      },\n      \"Sarvepalli Radhakrishnan University\": {\n        category: \"Sarvepalli Radhakrishnan \",\n        paymentMode: \"DADB\",\n      },\n      \"SCIENT Institute of Technology\": {\n        category: \"SCIENT Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Scope Global Skills University\": {\n        category: \"Scope Global\",\n        paymentMode: \"DADB\",\n      },\n      \"Shobhit University\": {\n        category: \"Shobhit University\",\n        paymentMode: \"DADB\",\n      },\n      \"Shri Venkateshwara University\": {\n        category: \"Shri Venkateshwara\",\n        paymentMode: \"DADB\",\n      },\n      \"Siddhartha Institute of Technology & Sciences\": {\n        category: \"Siddhartha Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Sir M. Visvesvaraya Institute of Technology\": {\n        category: \"Sir M. Visvesvaraya Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"SNJBS College of Engineering\": {\n        category: \"SNJBS College\",\n        paymentMode: \"College\",\n      },\n      \"Sona College of Technology\": {\n        category: \"Sona College\",\n        paymentMode: \"DADB\",\n      },\n      \"Sree Rama Engineering College (Tirupati)\": {\n        category: \"Sree Rama College\",\n        paymentMode: \"DADB\",\n      },\n      \"Sreyas Institute of Engineering and Technology\": {\n        category: \"Sreyas Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Sri Sri University\": {\n        category: \"Sri Sri University\",\n        paymentMode: \"DADB\",\n      },\n      \"Sri Venkateswara College Of Engineering & Technology (SVCET)\": {\n        category: \"SVCET Autonomous\",\n        paymentMode: \"DADB\",\n      },\n      \"Srinath University\": {\n        category: \"Srinath University\",\n        paymentMode: \"College\",\n      },\n      \"SRM University, Sonepat\": {\n        category: \"SRM University\",\n        paymentMode: \"DADB\",\n      },\n      \"St. Vincent Palloti College of Engineering & Technology\": {\n        category: \"St. Vincent\",\n        paymentMode: \"DADB\",\n      },\n      \"Sushant University\": {\n        category: \"Sushant University\",\n        paymentMode: \"DADB\",\n      },\n      \"SVS Group of Institutions Engineering\": {\n        category: \"SVS Group of Institutions\",\n        paymentMode: \"DADB\",\n      },\n      \"Talla Padmavathi College of Engineering\": {\n        category: \"Talla Padmavathi\",\n        paymentMode: \"DADB\",\n      },\n      \"Tamvarsity, Imphal\": {\n        category: \"Tamvarsity\",\n        paymentMode: \"DADB\",\n      },\n      \"Techno India Main Group\": {\n        category: \"Techno India Main Group\",\n        paymentMode: \"DADB\",\n      },\n      \"Techno India University (TIU)\": {\n        category: \"Techno India University\",\n        paymentMode: \"DADB\",\n      },\n      \"Toc H Institute of Science and Technology\": {\n        category: \"Toc H Institute\",\n        paymentMode: \"DADB\",\n      },\n      \"Trinity Academy of Engineering\": {\n        category: \"Trinity Academy\",\n        paymentMode: \"DADB\",\n      },\n      \"Vel Tech Hi Tech\": {\n        category: \"Vel Tech Hi Tech\",\n        paymentMode: \"College\",\n      },\n      \"Vel Tech Multi tech\": {\n        category: \"Vel Tech Multi tech\",\n        paymentMode: \"College\",\n      },\n      \"Vel Tech University\": {\n        category: \"Vel Tech\",\n        paymentMode: \"College\",\n      },\n      \"VIIT, Pune\": {\n        category: \"VIIT\",\n        paymentMode: \"DADB\",\n      },\n      \"VNR Vignana Jyothi Institute of Engineering & Technology\": {\n        category: \"VNR Vignana Jyothi\",\n        paymentMode: \"DADB\",\n      },\n    };\n\n    try {\n      \/\/ Populate college dropdown\n      collegeSelect.innerHTML = '<option value=\"\">Select College';\n      Object.keys(collages).forEach((c) => {\n        const opt = document.createElement(\"option\");\n        opt.value = collages[c].category;\n        opt.textContent = c;\n        collegeSelect.appendChild(opt);\n      });\n    } catch (err) {\n      console.error(\"Error loading colleges.json\", err);\n      collegeSelect.innerHTML = '<option value=\"\">Error loading colleges';\n    }\n\n    \/\/ &#9989; When college changes &#8594; fetch courses from API\n    collegeSelect.addEventListener(\"change\", async () => {\n      const selected = collegeSelect.value;\n      console.log(\"Selected college:\", selected);\n\n      courseSelect.innerHTML = '<option value=\"\">Select Course';\n      courseSelect.disabled = true;\n\n      if (!selected) return;\n\n      \/\/ show loader next to label\n      document.getElementById(\"courseLoader\").classList.remove(\"d-none\");\n\n      try {\n        \/\/ Fetch courses from API\n        const res = await fetch(\n          `https:\/\/api.dadb.com\/dev\/api\/payment\/courses\/${encodeURIComponent(selected)}`\n        );\n\n        if (!res.ok) throw new Error(\"Failed to fetch courses\");\n\n        const { data } = await res.json();\n        Object.keys(data).forEach((c) => {\n          const opt = document.createElement(\"option\");\n          opt.value = data[c].id || c; \/\/ pick id if available, else raw value\n          opt.textContent = c; \/\/ pick name if available\n          opt.dataset.price = c.price || 2950; \/\/ store price in dataset for later use\n          courseSelect.appendChild(opt);\n        });\n\n        courseSelect.disabled = false;\n      } catch (err) {\n        console.error(\"Error loading courses:\", err);\n        showPopup(\"Could not load courses. Please try again.\");\n      } finally {\n        \/\/ hide loader\n        document.getElementById(\"courseLoader\").classList.add(\"d-none\");\n      }\n    });\n\n    courseSelect.addEventListener(\"change\", async () => {\n      const selectedOption = courseSelect.options[courseSelect.selectedIndex];\n      console.log(\"Selected course:\", selectedOption);\n      basePrice = selectedOption.dataset.price || 2950;\n      discountedPrice = basePrice; \/\/ reset discounted price\n      couponApplied = false; \/\/ reset coupon applied\n      priceText.innerHTML = `Course Price: &#x20b9; ${basePrice}`;\n      updatePayNowButton(basePrice);\n    });\n\n    \/\/ &#9989; Pincode lookup (India postal API)\n    pincodeInput.addEventListener(\"blur\", async () => {\n      const pin = pincodeInput.value.trim();\n      if (\/^\\d{6}$\/.test(pin)) {\n        document.getElementById(\"cityLoader\").classList.remove(\"d-none\");\n        document.getElementById(\"stateLoader\").classList.remove(\"d-none\");\n        document.getElementById(\"countryLoader\").classList.remove(\"d-none\");\n        try {\n          const res = await fetch(`https:\/\/api.postalpincode.in\/pincode\/${pin}`);\n\n          const data = await res.json();\n          console.log(data);\n\n          if (data[0].Status === \"Success\") {\n            cityInput.value = data[0].PostOffice[0].District;\n            stateInput.value = data[0].PostOffice[0].State;\n            countryInput.value = data[0].PostOffice[0].Country;\n          } else {\n            cityInput.value = \"\";\n            stateInput.value = \"\";\n            countryInput.value = \"\";\n            showPopup(\"Invalid Pincode\");\n          }\n        } catch (err) {\n          console.error(\"PIN lookup failed\", err);\n        } finally {\n          document.getElementById(\"cityLoader\").classList.add(\"d-none\");\n          document.getElementById(\"stateLoader\").classList.add(\"d-none\");\n          document.getElementById(\"countryLoader\").classList.add(\"d-none\");\n        }\n      }\n    });\n\n    \/\/ &#9989; Coupon validation\n    couponBtn.addEventListener(\"click\", async () => {\n      const coupon = document.getElementById(\"coupon\").value.trim();\n      if (!coupon) {\n        showPopup(\"Enter a coupon code\");\n        return;\n      }\n\n      try {\n        \/\/ Mock API for coupon validation\n        const res = await fetch(\n          `https:\/\/api.dadb.com\/api\/coupons\/check\/${encodeURIComponent(coupon)}`\n        );\n        let discount = 0;\n        if (res.ok) {\n          couponApplied = true;\n          const result = await res.json();\n          if (result.valid) {\n            if (result.type === \"Percentage\") {\n              discount = Math.round((basePrice * result.value) \/ 100);\n            }\n            if (result.type === \"Fixed Value\") {\n              discount = result.value;\n            }\n            discountedPrice = basePrice - discount;\n            priceText.innerHTML = `Discounted Price: &#x20b9; ${discountedPrice}`;\n            updatePayNowButton(discountedPrice);\n            priceText.classList.remove(\"text-danger\");\n            priceText.classList.add(\"text-success\");\n          } else {\n            priceText.innerHTML = `Invalid Coupon. Price: &#x20b9; ${basePrice}`;\n            priceText.classList.remove(\"text-success\");\n            priceText.classList.add(\"text-danger\");\n          }\n        } else {\n          couponApplied = false;\n          priceText.innerHTML = `Invalid Coupon. Price: &#x20b9; ${basePrice}`;\n          priceText.classList.remove(\"text-success\");\n          priceText.classList.add(\"text-danger\");\n        }\n      } catch (err) {\n        console.error(\"Coupon API error\", err);\n      }\n    });\n\n    \/\/ &#9989; Submit form\n    form.addEventListener(\"submit\", async (e) => {\n      e.preventDefault();\n      e.stopPropagation();\n\n      if (!form.checkValidity()) {\n        form.classList.add(\"was-validated\");\n        return;\n      }\n\n      \/\/ check paymentMode (from selected college)\n      const selectedCollege = collegeSelect.options[collegeSelect.selectedIndex].text;\n      const paymentMode = collages[selectedCollege]\n        ? collages[selectedCollege].paymentMode\n        : \"DADB\";\n\n      if (paymentMode && paymentMode.toLowerCase() === \"college\") {\n        \/\/ Show popup instead of submitting to API\n        const modalBody = document.getElementById(\"genericModalBody\");\n        modalBody.innerHTML = `\n              <p>Hi ${form.elements[\"firstName\"].value},\n              <p>We&#8217;re excited to have you with us. Please begin learning by enrolling to the course through your college.\n              <p>Please contact your college administration office for payment instructions and further assistance.\n              <p>We look forward to seeing you continue your journey with us &#127891; If you have any issues with enrolment, please write to us at <a href=\"mailto:customersupport@dadb.com\">customersupport@dadb.com.\n            `;\n        const genericModal = new bootstrap.Modal(document.getElementById(\"genericModal\"));\n        genericModal.show();\n        return; \/\/ stop normal API submission\n      }\n\n      \/\/ &#9989; otherwise, proceed with API submission\n      const formData = {};\n      [...form.elements].forEach((el) => {\n        if (el.name) formData[el.name] = el.value.trim();\n      });\n\n      const billingInfo = {\n        firstName: document.getElementById(\"firstName\").value,\n        lastName: document.getElementById(\"lastName\").value,\n        address: document.getElementById(\"address\").value,\n        city: document.getElementById(\"city\").value,\n        state: document.getElementById(\"state\").value,\n        pincode: document.getElementById(\"pincode\").value,\n        country: document.getElementById(\"country\").value,\n        contact: document.getElementById(\"contact\").value,\n        university: document.getElementById(\"university\").value || \"\",\n        semester: document.getElementById(\"semester\").value,\n        department: document.getElementById(\"department\").value,\n        college: document.getElementById(\"college\").value,\n        email: document.getElementById(\"email\").value,\n      };\n\n      if (couponApplied) {\n        billingInfo.coupon = document.getElementById(\"coupon\").value.trim();\n      }\n\n      const items = [\n        {\n          id: document.getElementById(\"course\").value.trim(),\n        },\n      ];\n\n      try {\n        const response = await fetch(\"https:\/\/api.dadb.com\/api\/payment\/create-order\", {\n          method: \"POST\",\n          headers: { \"Content-Type\": \"application\/json\" },\n          body: JSON.stringify({\n            items: items,\n            billingInfo: billingInfo,\n          }),\n        });\n\n        if (response.ok) {\n          const data = await response.json();\n\n          const container = document.getElementById(\"billdesk-container\");\n          container.innerHTML = data.data;\n\n          const form = container.querySelector(\".billdeskpayment\");\n          if (form) {\n            form.submit();\n          } else {\n            console.error(\"No form found in response\");\n            showPopup(\"Error initiating payment. 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