PVR Cinemas — Ticket price guwahati PVR

I booked two tickets in guwahati PVR City centre for 27.03.2023 for John wick chapter 4 at audi 05..The price of the tickets are 180.00 each, which is a prime class. Total amount should be 360.00 but SURPRISINGLY 400.00 WAS THE PRICE WHILE PAYING. Including GST it was 468.44 but in actual it should be 360 + 64.8+2= 426.8
I don't know why they charged 40 rupees extra...