It is located 20 kilometres (12 mi) away from Fort St George on the Mount-Poonamallee Road.

The state highways department undertook renovation of the terminus at a cost of ₹ 4.1 million in March 2010.

The renovation includes construction of a compound wall, replacement of old lights, creating concrete parking areas for buses, installation of electronic sign boards, and raising the level of the terminus 1.5 feet above the height of Mount-Poonamallee High Road to prevent waterlogging during the monsoon.

Facilities for toilets and drinking water for both passengers and MTC staff was also planned.

[3] The 26.1-km-long Corridor 4 of the Chennai Metro Phase II which connects Ice House and Poonamallee will have a stop at Iyyappanthangal.