FaceTime no sound on Video calls on iPad

Hello Rajkumar@Apple! Thank you for participating in the Apple Support Communities.

We understand that when you’re on a FaceTime video call, you aren’t able to hear the other party. We'd like to look into this with you to see how we can help. 

Apple provides the following resource to help with sound issues for your iPad: If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker

Make it a great day!

Hello Rajkumar@Apple!

We appreciate that information. Since iOS 15.2 is a beta release, let's try going back to iOS 15.1.1 to see if the issue persists. The following resource can help with that: How to uninstall iOS or iPadOS beta software

Alternatively, you can leave feedback through the Feedback Assistant app, and wait for a future beta update or public release of iOS 15.2: Feedback Assistant

Cheers!