Unitech Group — Fixed Deposit amount not received

I have not received maturity amount of my following Fixed Deposits from Unitech Ltd. till date. I have submitted original FDR to the company and have sent many reminders but no response till date. One deposit is in my name (Harvinder Singh) and one deposit is in my mother's name (Sudarshan Kaur).

My mother is senior citizen (75 years). She is ailing and need medical attention. I have lost my job since March 2020. I am in urgent need of fund. Please help me. Details of FDR mentioned below:

FDR No. 1218954 dated 20/05/2013 for Rs. 40, 000 (Harvinder Singh)
FDR No. 1219066 dated 20/05/2013 for Rs. 40, 000 (Sudarshan Kaur)