From Bangalore:

Take the Ooty Road from Mysore ,Cross the temple town of Nanjangud (25 km) and drive further to the town of Gundlupet (30 km) Enter the Bandipur National Park look for the DCF (Deputy Conservator of Forest) office after the Forest Reception area. Take a left turn here.
Drive for about 6 km and reach Mangala village where you turn right
Drive down the unmetalled road between 2 small hills till you see a Windmill on the left and the board Dhole’s Den

From Coimbatore:

Take the Mettupalayam road to Ooty
Come down either the picturesque Kalhatty Gaht (36 Hair pind bends!!!) or to Gudalur and then drive further to Mudumalai
Cross Mudumalai and enter Bandipur National Park for the DCF (Deputy Conservator of Forest) office. Just before that office turn right.
Drive for about 6 km and reach Mangala village where you turn right
Drive down the unmetalled road between 2 small hills till you see a Windmill on the left and the board Dhole’s Den

From Calicut:

Take the road to Sultan Bathery
Cross Sultan Bathery, through the forest checkpost and state border of Karnataka and drive further to the town of Gundlupet. There turn right towards Ooty. Enter the Bandipur National Park look for the DCF (Deputy Conservator of Forest) office after the Forest Reception area. Take a left turn here.
Drive for about 6 km and reach Mangala village where you turn right
Drive down the unmetalled road between 2 small hills till you see a Windmill on the left and the board Dhole’s Den