My Birth Certificate Not Found In Government Record

I have a hard copy of my Birth Certificate showing Regn. No. 1728, DOB 15-09-1996, Registration Date 26-09-1996, and Issue Date 08-04-1999. During police verification for a government job, the District Magistrate’s Record Room (Purba Bardhaman) officially informed the police that these details do not match with their birth register. The police have clearly told me that because of this mismatch, my job is in danger. The hospital where I was born states that they already sent all birth records to the DM office and no longer have any register. I strongly suspect that at that time only a handwritten certificate was issued by the hospital and the birth was never properly entered or preserved in the official registration book. As per the DM office, my name is not found in the official birth register and some other name appears against my registration details. All Other Documents have Same Name Spelling and Same DOB. At this point what should I do? I am very Depressed.