Municipal Corporation Of Greater Hyderabad — Not issuing Birth certificate

My son is born in Feb 2021 outside India and we have visited India in nov 2021 and applied for his birth certificate since then its been 5 months we have not received birth certificate and my relatives have visited ghmc office multiple times but staff is either making excuses or calling after some weeks.
We tried acquiring birth certificate through agent but even he is making excuses everytime since last 2 months.
Please resolve this problem and issue birth certificate.
The transaction number i got from agent is as follows BNAC[protected]