It’s great that you have chosen a tour to Jim Corbett as it is one of the most wildlife-rich places to visit in North India. Going there in September is a good choice, again, as the weather will be moderate. Not too sunny and safe from heavy rainfall as well. You can have a great time exploring the wild beauty of the jungles. You can take a safari, wherein you will be exploring the beautiful National Park in a shared jeep, accompanied by the skilled naturalists. Moreover, you can also enjoy elephant safari and jungle walks to be closer to nature.
The National Park is known for its tigers and many times people are lucky enough to spot one in its natural habitat. That is a very thrilling experience. Overall, this tour is one of the most exciting ones among the India tour packages - https://www.indiator.com/tours/india/all-tour-packages so just go ahead. You’ll have a great time!