Did you actually travel on the delayed flight in the end? In that case, you are only entitled to meals and refreshments during the waiting time. The refund only applies if you chose not to travel on the flight, and the INR 10000 compensation for those who are denied boarding on the flight.

Please see http://dgca.nic.in/cars/D3M-M4.pdf for more information on this. This is the official source and not a random newspaper article.