Consumer Redressal

I bought Iball Andi 5.5 N2 on 27th march 2014 for Rs.11500. the phone suddenly stopped working within 3.5 months (approx.) then the phone was within the service center for approx 20 days. Then i received a call that i will get a replacement (iball andi sparkle) which was not an equivalent replacement. After making many calls to the senior executive I got the same model after a month. Within 15 day the screen of the replaced model started blinking. Again my phone was in the service center for 15 days (approx.). then with the god grace it worked properly for 1.5 months and once again it suddenly stopped working...again i went to service center...and again my phone was with the center for 10 days.. i got my phn back on 3th Feb and it stopped working on the same day evening.. and now it is still lying in the service center.. this is what iball offer to their customer..third class product with 1st class service.