Why some videos not playing on safari

Hey there govindarajashokan,

We'd like to help, but we'll need more details about what's happening when you play those videos, and in which format are they? The more details you provide, the better we'll understand what's happening.

In the meantime, we have some general possible causes to rule out:

1. We see you have iPadOS 15 installed, but the latest is iPadOS 15.7. Is this the exact version installed? You can verify this within Settings > General > About. Here's a link that'll show how to first back up, then Update your iPhone or iPad.
2. If these are links that open to other apps to play a video from Safari, we recommend making sure that all apps are up to date: How to manually update apps on your Apple device
3. Sometimes unexpected behavior can be resolved with a restart: Restart your iPad

Cheers.