Well to begin with all the tyres come with the maximum tyre pressure mentioned on them. Thats a point to begin with when you are at loss of information. What is mentioned on the tyres are the lowest suggested pressure by the company. Sometimes they provide a range.
For our bikes the manual says 33 on the front and 38 rear however for the indian roads it would recommended to drop a point for a little more grip, traction and less bumpier ride but please use this with tact!
A few basics tips for tyre pressure testing:-
You can improve your gas mileage by up to 3.3% by keeping your tires inflated to the proper pressure. Under-inflated tires can lower gas mileage by 0.3% for every 1 psi drop in pressure of all four tires. Properly inflated tires are safer and last longer.
So rider safe and ride smart guys.