Recently, loads of people were complaining about the TDR schemes. Many trains are running late by more than 3 hours and passengers are filing TDR for not travelling under those circumstances. I had faced a similar situation on 30th Dec 2014, when our train was scheduled to depart at 15 hrs late and I decided to file a TDR. I was worried to see that many TDRs filed on the same date for the same train got rejected. But finally my TDR got approved with full refund. A sigh of relief I would say.