Micromax — Service center did not repair my handset or replace it with new one ,,and they are just wasting my warranty period of my phone

Address:

North 24 Parganas, West Bengal

I have Micromax canvas engage A091 which have been i used for nearly 5 months and it stay at the service center for last 3 months for repair but it have been not repaired till now 28/05/2015.my handsets software and the mother board was crashed and i went to near micromax service center Barrackpore ( Optimal Solutions, 32/2, Barasat Road, Nona Chandanpukur, Barrackpore, Kol-700122 ).they service center repaired it's board and software but they also break my phones camera lens glass and side edges of the phone.in picture you can show what they did to this phone.that time i deny to take that phone but they vowed me that they will repair it in 10 days 01/04/2015dated they said me that but still today 28/05/2015 they did not do any work on that and giving excuses that parts are not available so they can't and but they did not replace my phone with new one either.But it's damaged by the company servicing .the Service center is full of corruption and false vows.for that reason we the customers are suffering. therefore it's my earnest request to you take effective steps against this Service center and give me a proper solutions from theirs servicing, because it's too much annoying .