Lenova — Lenovo vibe mobile automatically heat and battery down

Address:

Chitradurga, Karnataka, 577501

I purchase lenova vibe mobile in chitradurga district of karnataka state pin code no 577501 on 19 may 2016. The same mobile continuously heat with out any data opening. Your service engineer checked and recommended to battery change. I changed the battery with cost of rs 1600/- two month back but not solve the problems and battery automatically low due to excess of heat the cell.
Imei1:[protected], imei2:[protected],
Serial no - hb0m9gpq (20)
My mobile no - [protected] and mail id - [protected]@gmail.com