Advice: National park share a jeep! Double-discount!
Depending on the time of year there are more jeeps than couples.
Every hotel receives commission, jeep price is 2.500 rupees, the rest is commission that you pay. Almost inevitable. But! if you just hitched a ride in a jeep to the park and shared the jeep that is not full.
It saves you half-jeep-price, but entrance is also 1.000 rupees less expensive due to group discount. Hotels don't arrange sharing!