Best phone for my Mom under 15k?

Best phone for mom under ₹15k? Need LOTS of storage

Need recommendations for a phone for my mom (India, budget ₹15,000).

Her usage is very simple:

* WhatsApp

* YouTube

* Calls

*Photos/video

But the important part: **she takes a LOT of photos and videos**, and never deletes them 😅 So I need **a LOT of storage (preferably 256GB if possible)**.

Requirements:

* Good battery life

* Smooth everyday performance (no lag)

* Average/decent camera is enough

* Photos/videos shouldn’t take massive storage (if some brands compress better?)

* Easy UI for parents

Currently considering Redmi / Samsung / Poco / Motorola, but open to anything reliable.

What would you buy for your mom in this budget?