How to verify the phone number?

I want to create a form where INDIAN users will enter their phone number, but I want to verify that number before they can submit the form? Is it possible to do with Jotform? 

You can use SMS confirmation widget: https://widgets.jotform.com/widget/sms_confirmation so your users will enter their phone number and receive SMS to confirm.

You have to have Twilio account in order to make it work.

Hope it helps.

Thank you!

Does the twilio work well with Indian numbers?

As far as I could check, it should work fine. You can check this: https://www.twilio.com/sms/guidelines/in

If you have any further questions, please let us know.

Thank you!