Nokia India — defective battery used in nokia 1 cellular phone

Address:

64-10-7, S R K NAGAR, East Godavari, Andhra Pradesh, 533105

Bought one nokia 1 cell from "bigc mobiles p. Ltd, rajahmundry vide inv. No. Si/rj1/6889 on 13.9.2019.
N1 blue imei [protected], month and year of manufacturing 07/2019.
When i was on call the cell phone became off on its own. When i tried to switch it on, a lot of heat produced and the batter released a lot of smoke and when i dropped the cell into my balcony for safety purpose, the flip cover and cell got detached luckily and battery was exploded after emitting a lot of smoke.
I complained to the authorized service center "srkt enterprises, rajahmundry on 30.11.2019, with a narrative of what happened.
Yesterday the service center returned my cell stating that nokia policy is to repair its set only during warranty period and disowned the responsibility for defective battery.
Later i contacted nokia care @ [protected]. One mr. Ajay dealt the issue, felt regrets for battery mishap and asked me to contact mr. Venkatesh, technician at srkt enterprises for solution and asked me to contact nokia care and give the cell to mr venkatesh for apprising as to what to do.
I did the same but some other lady attended the call and said nokia policy is to repair its set only and not battery.
So, to say that nokia uses defective batteries and causes loss to consumers and no recourse for that.
I request the concerned to take note of it and do the needful.