Sahara India Pariwar — Refund of my mother's recurring deposit amount

Address:

11/280, sai maya Apartment,souterganj, Flat no.302

My father late. S. Devender Singh Opened a recurring account in sahara on my mother's name and he deposited a huge amount in that account and when my father expired my mother claimed for the amount and the agent said that sahara is not giving any claim right now and after that the agent is gone somewhere and did not meet to my mother again now I only know the account number of my R.D Account please help me get my amount