At last, we also have the DND feature on the Redmi Watch 2 Lite. If you want to stop receiving any notifications on the watch without disconnecting from your phone, you can turn on DND. Follow the steps mentioned below:
Step 1: Swipe up on the watch home screen and click the Settings icon.
Step 2: Select DND and enable the DND toggle to use this feature instantly.
Step 3: Enable the Scheduled toggle and set a Start and End time. The DND will be automatically enabled during the set timings.
Source : wearablestouse.com