Good afternoon sowmithry,
Welcome to the Apple Support Communities!
It sounds like you would like to have your Voice Memos sync from your Apple Watch to your iPhone, and we'd like to help. First, make sure you are updated to iOS 14.6 and watchOS 7.4.1. Restart you iPhone and Apple Watch to refresh them. Then:
Turn iCloud features on or off - iCloud User Guide - Enable Voice Memos in the iCloud settings on the iPhone that is paired with your Apple Watch.
"Turn iCloud features on or off on an iPhone, iPad, or iPod touch
On your iPhone, iPad, or iPod touch, go to Settings > [your name] > iCloud.
Turn iCloud features on or off.
- For an Apple Watch you pair with your iPhone: If you turn on an iCloud feature on your iPhone, you can see information from that feature on your Apple Watch (if available). You can choose what information appears on your Apple Watch by changing settings in the Apple Watch app on your iPhone.
Record and play voice memos on Apple Watch - Apple Watch User Guide
"Voice memos you record on your Apple Watch automatically sync to your Mac, iPad, and any iOS devices where you’re signed in with the same Apple ID."
Reach out to us if you have any additional questions after setting up Voice Memos in iCloud on your iPhone, and testing the app on your Apple Watch.
Take care.