Onida / Mirc Electronics — t. v 50 inch in warranty still making delays & no proper reply

Address:

400066

I bought a electronic product i. E onida 50 inch t. V from metro cash & carry india pvt. Ltd. That is on dattapada road, village magathane, borivali (East), mumbai 66. The product is still under warranty provided, the warranty period is from 15/10/2015 to 15/10/2018 of which i have original doucumets i. E t. V purchase bill & customers warranty card, still the concerned authority is making delay its been a long time i’m getting no proper reply, inspite of filings complaints & even after visiting onida authorised service centre, worst service ever faced & poor technicians, no proper way how to communicate & no reply. What should i do? Its been over 3 months.