Any recommendations for a good tablet? I need to sketch ad hoc diagrams and scribble notes in zoom/teams whiteboard meetings. Looking for something available within India via Amazon or Flipkart (i.e. don't wanna deal with customs/import duties).

Apple iPad - whatever model picks your fancy. All of them support the pencil. Android - Samsung Galaxy Tab A6 Lite - Supports the S-Pen. You want to use the S-Pen coz thats the only way you get palm recognition.

If its just for computers, take a loot at Wacom's Drawing Tablets

Bought a Chromebook Duet recently. There's a basic 250rs rubber stylus I was using which works great but if you want better an additional USI stylus would cost 4K. Pros: It's a pc and split windows are really useful. Chrome can use extensions since it's not Android. Youtube and all other apps can run in the background simultaneously without a plan since it's ChromeOS. ChromeOS is good for security. Awesome for multitasking. Cons: keyboard is detachable but a Bluetooth one would've been a lot better. Doesn't come with stylus. Bigger screen would've been better.