Whirlpool India — refrigerator not cooling & noise problem - manufacturing defect product

Address:

17 josier street,Near Kaveri Womens Hostel,Nungambakkam,Chennai, Chennai, Tamil Nadu, 600034

Hi team,
I bought double door fridge on feb 2018 from griyas showroom parrys corner chennai. They had sold me an defective product.
During the installation, the front door was damaged. After completion of 1 year warranty period, started many problems like loud noise from the freezer, defrost not working & no cooling from the fridge. I raised a complaint for noise & cooling issue on aug 24th 2019, a whirlpool service technician from arumbakkam came and charged me rs 2000/- for replacing the timer parts. It exactly worked for a month. Then the same noise & cooling issue started today. An in-efficient whirlpool service technician from arumbakkam told it is due to timer issue and everything is working fine without even checking the issue properly. And then service person told, there is an gas leakage in the pipe so need to refill the gas. It will cost around rs 3000.
I cannot afford rs 3000 every month for replacing the spare parts for a defetive product. I need an immediate solution for my problem and take necessary steps to resolve the defect item..