State Highway 156 (Tamil Nadu)

The Kodaikanal Ghat Road has been designated by the Tamil Nadu State Highway Department as SH-156. It begins at 10.15278°N, 77.69167°W on the Grand Southern Trunk Road (NH-45), about 8 km west of Batlagundu and ends at Kodaikanal with a length of 56.8 km.

The Road is tolled by the Kodaikanal Municipality.

History
The road was strengthened at a cost of ₹ 60 million in 2009. A retention wall was later built due to a landslide.

The Road was used as an alternative when the Adukkam-Periakulam and Adukkam-Perumalmalai ghat roads were shut due to excessive damage.

In 2010, the road was completely blocked after a major landslide occurred due to heavy rainfall.

Accidents
In 2011, four people were killed when a car plunged into a gorge.