If you book a train ticket under Reservation Against Cancellation (RAC), you will be allocated a berth that will be shared with another traveller. This is typically a lower-side seat that must be shared with another passenger. However, if there are available seats, the train's TTE may assign you a full seat. Please note that after chart compilation, any subsequent changes to the PNR Status will not be shown on RailYatri's PNR Status web page. It is crucial to note, as stated by a RailYatri user, that the side upper passenger would also share the bottom berth for seating during the day. We recommend that you read the RAC Tickets blog. You can cancel RAC tickets with ease if you need a full berth for travel.