Tipps are very normal in India and it is never included in price.
1: Hotels: Every hotel you will go, you will find porters for helping you for your luggage to bring in your room. Normal tipps for these boys are Rs.20-30.
2: Restaurants: In restaurants after eating for waiters Rs.30-40.
3: For drivers: It is Rs. 100/ per day / per person. Please don’t pay them everyday. Always pay to the driver on the last day and last moment of your trip.
Tipps means at the end of any type of service.