what should be the optimum tire pressure

Hi sandeepsahu! That spec is not car dependent. Each tire will have a recommended tire pressure of it's own. It may even be readable on the side of the tire. Check there or check with the place that you purchased them from. Good luck!

DO NOT GO BY THE SIDE WALL OF THE TIRE. check the owners manual, or the driver's side "b" piller wall, it will tell you tire size, tire pressure, and load carrying capasity.

it will say on the b piller in the driverside door jame on a lable it usually ranges from 29 - 33 for passanger vehicles

Um, guys... the car is over a decade old. Odds are, the tires it has are NOT factory, so go by what it says on the TIRES... not on the car or the manual for the car. For all you know, the tires on it are not "recommended" by the car manufacturer, but have been working for a while now. ALWAYS go by the info on the sidewall of the tire for pressure, etc. The tire manufacturer is the best source of info on the tires themselves.

Your car calls for 32 in front, and 29 in rear. As a mechanic, I would say 34 in front and 32 in rear, to maximize tire life. By the way, the tire pressure on the sidewall of the tire is the MAX THAT THE TIRE WILL HOLD, not the inflation pressure. The specific tire means nothing, since load/speed ratings stay the same from brand-to-brand for that tire application.