I had filed but no refund ЁЯША.And m pretty sure there is no refund on confirmed ticket after chart preparation .If it's e ticket than 40 hour pahle b chart ban gaya than u will not get any refund for that ticket.Like for bhopal chart of kongu express is being prepared after departure of Coimbatore .once I was checking tickets on Sunday for Tuesday and current availability were showing for kongu express from bpl to nzm