Latet affordable stock android phone

[AC Question]

I want to buy an android phone and below are the only requirement I'm looking for:

1. For at least 2 years I should get all OS updates
2. Should have above 3k battery backup
3. At least 3 GB of RAM
3. I can spend only up to 20k INR.

Please suggest me phones that more closely fulfil above requirements.

 

[Rukbat]

Flagship phones get updates for 2 years, so you're buying a phone that just came out - and even a Nexus is going to cost more than you want to spend, unless your carrier is subsidizing the price.