Great that you all like it.

Praveen,
Corbett is a great place. However, it opens on Nov 15th.

You can go to Ranthambhore or Bandhavgarh. Both of them open in Oct. You will get to see tigers but not as frequently as you see during summer. Ranthambhore is crowded on the diwali. So if you are planning exactly on the same day, then you may book earlier.

Cheers,
Sabyasachi