Unitech Group — non payment of maturity amount of fd

I have deposited 60000 rupees as fixed deposit under unitech fd (Fd no[protected] scheme for period of 1 years. Though the maturity date was 4/dec/2014 still they haven't paid the principal amount of 60000 rupees. When i tried to contact them no one is picking the call. I also sent a mail complaining the non payment still no reply was there from their side.