the options are - check with the counters - if you had booked your ticket thro counters, if it is not clear they will inform you the pnr number note it - if you had booked thru irctc - you can easily check by logging in to your account and seeing booked tickets.
if you did booking thro agent, you can contact him and ask him.
if ticket serial number is ok, the counter people will be able to help you or u can contact the reservn. supervisor showing your ticket. thanks