What is an HTML form? Explain the different form elements and discuss their uses in collecting information from users.

An HTML form (<form>) collects user input on a webpage and sends it to a server (e.g. fertilizer application form on Krishi Samagri portal).

Elements and uses:

1. Text/Password/Email/Number (<input type>) — Name, password, phone, quantity. required, placeholder guide entry.
2. Radio — One choice: Gender (Male/Female), payment mode. Same name groups them.
3. Checkbox — Multiple choices: crops (Paddy, Wheat, Maize).
4. Dropdown (<select><option>) — District list (77 options) saves space.
5. Textarea — Long address/remarks.
6. File — Upload citizenship scan/photo.
7. Buttons — Submit (send), Reset (clear).

<form action="/apply" method="post">
  Name: <input type="text" name="n" required><br>
  District:
  <select name="d"><option>Chitwan</option><option>Rautahat</option></select><br>
  <input type="submit" value="Apply">
</form>

Server validates (required, pattern) then stores in DB — forms are the entry point to e-services.