Mobile phone recommendation during BBD / Amazon sale

Need to buy mobile, your kind support needed to finalize. Will be used by student

1. Should be loot like offer

2, Prefer flagship processor / camera 

3. Do not prefer chinese brand phones

4. Budget less than 40K

5. Should get good and fast updates.

PLease your suggestions on the best deal of the season, this thread can also help others who are on  the same boat. 

Reason I am asking is I do not see any good offers, all look useless offers both on FK and AZ.