Sharp — Sharp a. c 1.5 ton is restarting automatically

Address:

New Delhi, Delhi, 110064

I purchase an sharp 1.5 ton a. C from sai traders karol bagh on july 2016. The cooling is not sufficient and after four months its creating problem and the problem is its restarting automatically after few minute. When i try to call customer care the no is not exist kindly help me to resolve the problem where do i go for the further help because the seller is asking to contact the copany and the company is not existing.