micromax a310 display not work and hanging problem

i am purchessed handset on 23/10/2014 and 30/7/2015 sevan month later mobile display problem.then 45 day replaced the handset but two days later display toch and hanging problem the replaced hand set.I am calling agein and agein but near authoraized service center and company customer care not properly support and ansering.micromax handset faulty place not purchess micromax handset