I need a simple contact form with mobile = sms verification

I need a simple 4 field form with name , mobile , email age field with no replica.

I need email field to check againt previous entries.

Mobile should verify and send sms code to user that authenticates himself filling out the code.

I have sms gateway and http api with me.
http://your_domain/pushsms.php?username=your_username&password=your_password&sender=your_senderid&to=your_recipient&message=your_message&priority=route

But i am unable to make out how to integrate it with zoho creator application.

Any example and codes will be of great help !