Micromax Informatics — my money back micromax tv is faulty,

Address:

D-344 new ashok nagar, New Delhi, Delhi, 110096

I purchase a 42 inch led tv of micromax from flipkart on emi basis 25/12/2017. The tv comes 3 year onsite warranty. It's defect come after 4 months on screen some color full tiny parts on middle area of screen, may 2018 tv is defect.
Again tv is problem after 5 month december month 2018, and again its problem in march 2019, all time they are replace the tv and charge 826/ rupees for service charge, i ask them when its come with warranty and your tv is defective, every time same problem.
So why we pay the service charge..
Panel problem is come three time and they are replace the tv three time
I want to my money not need the tv replace. When the warranty will end my they charged big amount for repair.
So sir i want my whole money back,

I want to my money not need the tv replace. When the warranty will end my they charged big amount for repair.
So i want my whole money back with penalty...
Please do need full process for me.