Micromax — Service centre located in kolkata

I was buyinth a micromax phone through online on 19th july 2015. After few days the said mobile was not working. 5th november i go to my nearest service center smart solution and the technician told that it is a software problem, wait outside. After half an hour the technician came back and give me the phone and also told that after charging the mobile will work. I returned back and charging the phone after 12 hrs the battery showing 2% charge. Then i try to charge through external charger but battery again showing 2% charge. After few days on 15th november i was again going to the service center smart solution, again the technician told wait outside we are try to solving the problem. After half an hour the technician called me and told that the mobile was handling outside and we are not responsible. I was told that i want to talk with your senior but the technician roughly behave with me and told senior will come letter and then talk with him. I demand for his senior phone no, he told that we can not give you the phone no. I asked his name and he proudly said rabi das. Now i am totally hopeless. Name goutam das 217, nandan nagar, belghoria Kolkata:700083 Cont no [protected] E mail :[protected]@gamil.com Model no: micromax canvas pep q371 smart 8gm blue Imei no [protected] Invoice no s785d8/15-16/3618 dated 19th july 2015