<!DOCTYPE html>
<html>
  <head>
    <title>Indian States and Districts</title>
  </head>
  <body>
    <h1>Indian States and Districts</h1>
    
    <label for="state">Select a State:</label>
    <select id="state" name="state">
      <option value="">--Select State--</option>
      <option value="Arunachal Pradesh">Arunachal Pradesh</option>
      <option value="Gujarat">Gujarat</option>
      <option value="Madhya Pradesh">Madhya Pradesh</option>
    </select>
    
    <br/><br/>
    
    <label for="district">Select a District:</label>
    <select id="district" name="district">
      <option value="">--Select District--</option>
    </select>
    
    <script>
      // Create an object with arrays of districts for each state
      var districts = {
        "Arunachal Pradesh": ["Tawang", "West Kameng", "East Kameng", "Papum Pare", "Kurung Kumey", "Kra Daadi", "Lower Subansiri", "Upper Subansiri", "West Siang", "East Siang", "Siang", "Upper Siang", "Lower Siang", "Lower Dibang Valley", "Dibang Valley", "Anjaw", "Lohit", "Namsai", "Changlang", "Tirap", "Longding"],
        "Gujarat": ["Ahmedabad", "Amreli", "Anand", "Aravalli", "Banaskantha", "Bharuch", "Bhavnagar", "Botad", "Chhota Udaipur", "Dahod", "Dang", "Devbhoomi Dwarka", "Gandhinagar", "Gir Somnath", "Jamnagar", "Junagadh", "Kheda", "Kutch", "Mahisagar", "Mehsana", "Morbi", "Narmada", "Navsari", "Panchmahal", "Patan", "Porbandar", "Rajkot", "Sabarkantha", "Surat", "Surendranagar", "Tapi", "Vadodara", "Valsad"],
        "Madhya Pradesh": ["Agar Malwa","Alirajpur","Anuppur","Ashoknagar","Balaghat","Barwani","Betul","Bhind","Bhopal","Burhanpur","Chhatarpur","Chhindwara","Damoh","Datia","Dewas","Dhar","Dindori","Guna","Gwalior","Harda","Hoshangabad","Indore","Jabalpur","Jhabua","Katni","Khandwa","Khargone","Mandla","Mandsaur","Morena","Narsinghpur","Neemuch","Panna","Raisen","Rajgarh","Ratlam","Rewa","Sagar","Satna","Sehore","Seoni","Shahdol","Shajapur","Sheopur","Shivpuri","Sidhi","Singrauli","Tikamgarh","Ujjain","Umaria","Vidisha"]
        
      };
  
      // Get the state and district dropdown lists
      var stateDropdown = document.getElementById("state");
      var districtDropdown = document.getElementById("district");

      // Add an event listener to the state dropdown list
      stateDropdown.addEventListener("change", function() {
        // Clear the district dropdown list
        districtDropdown.innerHTML = "";

        // Get the selected state from the state dropdown list
        var selectedState = stateDropdown.value;

        // If a state is selected, populate the district dropdown list
        if (selectedState !== "") {
          // Get the districts for the selected state
          var stateDistricts = districts[selectedState];

          // Add the districts to the district dropdown list
          for (var i = 0; i < stateDistricts.length; i++) {
            var districtOption = document.createElement("option");
            districtOption.text = stateDistricts[i];
            districtOption.value = stateDistricts[i];
            districtDropdown.add(districtOption);
          }
        }
      });
    </script>
  </body>
</html>
 

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