Hello Debosmita Das.
There are chances that new software or app has tweaked the power settings of your laptop, which has resulted in excess battery drainage. This issue can easily be taken care of by following these steps:
- Go to Settings > System > Power & Sleep
- Adjust the settings for sleep and screen time
- Make sure that your laptop power plan is intended for conserving the battery
- You can also go to the Additional Power Settings menu and check the optimized or balanced settings
Another thing You can try:-
Update System firmware and software of your Laptop to current version.
Run Diagnosis report from BIOS.
If still problem Prissiest contact to service center.