Mahanagar Gas — New piped gas connection

Address:	421501
Website:	Mahanagar Gas Ltd.

We had made final installment charges on 17th september, 2016, but i regret to inform you that even after nine months i am still waiting for my piped gas connection. Our bp no : [protected]. We had also made several complaints in the past, latest being on 18th april, 2017 and the docket no : 3204776.
In the above mentioned circumstances what i am supposed to do.