Unitech Limited — Non payment/refund of fixed deposit by unitech

Address:

110017

I bought fixed deposit o[censored]nitech limited on 13.02.2012 for rs. 75000/-. the date of maturity was 13.10.2015.
After several letters and complaints i am yet to be refunded the amount. also the interest for the period 1.04.2015 to 13.-4.2015 has not been paid to me.
On 20.04.2016 and 10.07.2016 i sent copies of all documents by courier to the company secretary o[censored]nitech limited.
I have not received any response from the company