Oxirail
Railway ticket cancellation

I had booked a ticket to travel from yesvatpur (Bangalore) to hubli the journy was scheduled on 24-04

for some reasons i had to cancel my ticket

when i log in to oxirail and select cancel ticket option it asks us to provide some oxirail ref. no which i was not able to find it anywhere on ticket. i tried to contact there cus. care no (Karnataka) it says the no is not valid.

I dont know how to cancel this ticket.