Xiaomi India — android system problem

Address:

Kamrup Metropolitan, Assam, 781006

I don't play games incharge my phone once in a day... I don't have many apps installed... Then why is my phone consuming so much battery... Android system is at over 34% which is the main reason for this drain... I don't expect to have a phone 6 months old show hardware issues or software issues what do you guys think i should do. It's a redmi 4 running on nougat, and i reset the phone once still of no use