Unlike American National Parks, the Indian ones are mostly protected areas for endangered wild life. There are 103 such National Parks now and more are expected to be added to the list.
I have been only to two of them and that too for very brief visits over two week ends. The Jim Corbett National Park and The Sultanpur National Park.
I never had the financial resources to spend more time in any of these parks as every possible vacation was used to visit family or to go for meditation camps. By the time I could afford to go, I had had my hips replaced and roughing it out camping in such parks was completely out of the question. My loss.
I hope that my children will visit more of them.