Southern Railway — I am complaining about cancellation of Ananthapuri express on 20/1/2017 due to unrest in Madurai region and not refund my ticket amount

Address:	Chennai, Tamil Nadu, 600 003
Website:	www.southernrailway.gov.in

I had booked my ticket online on 19th January 2017 for m;y travel on 20th Jan 2017 under tatkal quota from Trivandrum Central to Dindigul Junction by Ananthapuri express 3a/c. The train departed from TVC on 20th January 2017 at 17:40. It reached Kulithurai around 20:00hours. We were informed that the train is cancelled between Nagercoil and Chennai due to unrest in Madurai region. We had no other alternative. So cancelled the Journey. I filed TDR. Now I received the following information.
The TDR filed against PNR Number [protected] with reason Train Terminated Short Of Destination. has been repudiated by the Chief Commercial Manager/Refunds null due to reason null as per the Indian Railways Refund Rules
I have a strong feeling that I should get refund. It is not my fault.
kindly consider my request and refund the eligible amount.