Alchemist Infra Realty Limited — Maturity amount not received

Address:

Ujanpetla P/S Tamarhat, Dhubri Assam 783332

I have open an account on 31/05/2011 and deposited amount 25000/- after maturity I suppose to get 50000/- on 31/05/2017 but till now I have received my amount more over I tried many ways to get my amount but all mentioned cont no found not in service.
Please help me to get the amount.
certificate is attached FYI.

Regards,
Madan Basak
[protected]