I booked a tatkal ticket for 30th october by this train from NZM till VSKP. The fare was 658 rupees (520 general fare + 138 tatkal charges). But due to some personal reasons i have to cancel it today morning. I got a refund of only 130 rupees. Even we calculate 75% cancellation charges then it comes to around 165 rupees. How is it done? Anyone please put some light..