Sahara Credit Cooperative Society Limited — mis

Address:	495677
Website:	www.sahara.in/finance.html

My mother was mis-guided by agent Mr Verma ([protected] / [protected]) to invest 4 lakh 12 thousand in Sahara Credit Cooperative Society Limited via certificate number[protected] in July 2016 for a period of 5 years after the death of my father.
Now, she wants to prematurely withdraw the amount and ready to pay the fine for it. However, the SAHARA officials are not allowing the same .
They are saying that as per Terms and conditions it is neither allowed to break the MIS nor avail a loan against it.
Please let me know which regulator to approach as it does not fall under RBI and falls under Ministry of Agriculture.