From Bangalore :

Bangalore – Krishnagiri – Dharmapuri – Salem – Namakkal – Karur – Dindigul – Batlagundu – Kodaikanal

From Chennai:

Chennai - Villupuram – Trichy – Dindigul – Batlagundu – Kodaikanal

From Ooty:

Ooty – Mettupalayam – Coimbatore – Pollachi – Palani – Kodaikanal

From Munnar:

Munnar – Bodi mett – Bodi - Theni – Periyakulam – Kodai

Or :

Munnar – Chinnar - Udumalaipet – Palani – Kodai

From Cochin :

Cochin – Trichur – Palaghat – Pollachi – Palani – Kodai