Anna Salai, formerly known as Mount Road (abbreviation of St. Thomas Mount road), is an arterial road in Chennai, India. It starts at the Cooum Creek, south of Fort St George and ends at the Kathipara Junction in Guindy. Beyond the Kathipara Junction, the road branches into two, with one traversing westwards to Poonamallee to form the Mount-Poonamallee Road while the other continues southwards to Chennai Airport, Tambaram and beyond to form Grand Southern Trunk Road (GST Road or NH45). The road was an indicator of development as the city of Chennai grew up mostly along its eastern and western sides.
There were several flyover projects under proposal along the stretch, many of which have been shelved owing to the construction of the Chennai Metro Rail project, which runs along the median of the road.
The milestone for Chennai's Kilometre Zero is placed just near the northern end of the road on Muthuswamy Road–Flag Staff Road near the Island Grounds.
Read more about Anna Salai: History, The Stretch, Safety Level, Chennai Metro