WhatsApp incoming call notification not working

Hi iamkrishsiva,

Thanks for using the Apple Support Communities.

Do you receive the notification on your iPhone for WhatsApp calls? If not, check to make sure all the notifications are set up correctly: Change notification settings on Apple Watch

Keep in mind notifications will come to either your iPhone or Apple Watch but not both. Here's more information about this:

Notifications appear on your Apple Watch or iPhone, but not both.

If your iPhone is unlocked, you get notifications on your iPhone instead of your Apple Watch.

If your iPhone is locked or asleep, you get notifications on your Apple Watch, unless your Apple Watch is locked.

Some apps, such as the Noise app, are only on your Apple Watch. Notifications for these apps don't appear on your iPhone.

The red notification icon  appears at the top of your watch face when you have unread notifications. If you want to hide the notification icon, open the Apple Watch app on your iPhone, tap Notifications, then turn off Notifications Indicator.

When you read or dismiss notifications on your Apple Watch, they’re also dismissed from your iPhone.

This information is from article Notifications on your Apple Watch.

Please do not hesitate to reach back out to us if you have other questions.

Cheers!