i tried going to station master. He told me that he can allot me seat in another train only if i had a joint ticket (you only get it offline). I had an e ticket so he just gave me a slip that train was late. I boarded 22603/ Kharagpur - villupuram till vskp and then took a bus to TUNI. Paid TTE INR 300 he gave me a berth till VSKP in 3A. :)