CHENNAI: The computerized Passenger Reservation System (PRS) centers in Chennai Division of Southern Railway will function for only one shift, similar to Sunday pattern of working (8.00 am to 2.00 pm) on December 25 (Wednesday) on account of Christmas, a national holiday.

Also, Sunday pattern of suburban train services will be maintained in Chennai Central - Arakkonam, Chennai Central - Gummidipundi/Sullurupeta & Chennai Beach – Chengalpattu sections, a release issued by Southern Railway said.