S. K. Narula — non return of matured fd amount

The orignal FD number1239789 for Rs.1, 00, 000/-had matured on 25.9.2015.As desired by unitech over phone, the orignal fd duly discharged was personally delivered in their office on 05 Aug 2015 which was duly receipted and stamped. It more than 3 1/2 years but the capital amount of Rs.1, 00, 000/- has not been returned to me despite several personal visits and reminders.I am a senior citizen aged 77 years.