No refund is permissible against lost/misplaced tickets. However passenger will be allowed to travel on the reservation already made on confirmed one or RAC .If the loss of confirmed/RAC ticket is reported before the preparation of the reservation chart, duplicate ticket will be issued on the collection of the clerkage charge per passenger. If the loss of confirmed/RAC ticket is reported after the preparation of the reservation chart, duplicate ticket will be issued on the collection of the 50% of the fare . No duplicate ticket will be issued after the preparation of reservation chart in case of RAC ticket . Loss of tickets be reported to railways immediately to prevent fraudulent refunds on lost tickets.
You have to Contact nearest PRS...
more... supervisior to get duplicate ticket. Have to give some proof that this ticket is yours. He will ask you some query and you have to respond them by giving correct answer .