Hi friends,
The form is working fine now.
The solution to this issue:
Removed one form from the page (2nd one was the contact form in the footer) and the 1st form (join-Prabhat) worked. As I had already guessed that
Netlify doesn’t accept 2 forms in one page (https://answers.netlify.com/t/2-forms-in-one-page-doesnt-work/6201)
Thank you all for your time. Its a bug to be reported to netlify. How to report it? and there has to be delete option for unused forms from the dashboard as it causes confusion.