CNG was open all day on monday, and closed 6 am tuesday.
They have CNG stored in their cylinders at the back, but will only give to regular customers e.g rickshaws, wagons etc.
I am going to with my uncle at 1 am and get CNG
Become friends with the CNG pump workers, and you will be getting CNG without a hassle
Same thing happened yesterday on monday, I went to Lahore with driver and family, and in Panwan, driver phoned his friend asked about family etc. and we went to his CNG pump, the worker brought the nozzles from the office and filled our car, so CNG is available at most pumps, but they just don't want to give it.
Good luck in getting CNG ^_^