If you are searching for smartphone under 12000 then you should know about POCO M3 its specifications are Fast charging, a 6000mAH battery, Snapdragon 662 processor, decent cameras, etc. POCO M3 is considered one of the best smartphones in this budget it offers many features under 12000 rupees budget.
Information source - https://tektechy.com/best-mobiles-under-12000-in-india/
