If your car is in genuine condition then the recommended tyre pressure will be written on a sticker on the driver's side door jamb (pillar). Tyre pressure is to be kept as written on the sticker for all tyre sizes which u will install on your car. No matter if tyre is thick or thin or with high or low profile. Tyre pressure is a measure of air pressure inside the tyre and it is to be as written on the door jamb.
For example, my City tyre pressure sticker says 32psi front and 30 psi rear for stock tyres 175/65-15. So even if I install 195/60-15, tyre pressure will remain the same as tyre pressure has been calculated keeping the weight of the car in mind. Hope this helps.