TTK Prestige Ltd — Gt-04-al-4 faulty burner poor service

Address:	Thane, Maharashtra, 400605
Website:	TTK PRESTIGE

Hie i am tejas chavan i have purchased above mentioned gas top of prestige. The product is so defective that utensils burning from bottom and top plate got rusted and burning as burner is defective i guess. I have called ttk prestige limited service number of mumbai[protected] on 19june 2016. They registered complaint and number is mumb1905095. After that no one have attended my complain and even i have called them 5 -6 times at every 2 to 3 day. Every time they saying we need to talk to senior complain in progress. Every time same reasons. What should i do?? Should i file case against them?? Or should i visit there office???