Hi Ravindra,

Bandipur, Nagarhole and Mudumalai are connected National Parks. They are around 250 kms from Bangalore. The part in Karnataka state is called Bandipur while the one in Tamil Nadu is called Mudumalai. They are on the border of the two states with just a few kms separating them. Wayand is located in Kerala and is a bit far from Bangalore.

These are open through out the year, so you can visit in September. The sightings can vary depending on the monsoon.

Let us know if you need any more information.