Micromax Mobiles — Return unchoice defective micromax A310 MODEL

I brought one no. of MICROMAX CANVAS DUT II EG 111 BLACK mobile phone on dt. 18 sept. 2014 . Phone got defective on Aug 2015. I submitted the phone at Ramgarh service center, On dt. 17Sept.2015 service center return me another unchoice defective MICROMAX A310 mobile phone and told company sent new A310 for you. But this phone is not new and not choice for us. So pl. change or return .I also want to go consumer court.