Bengaluru–Chennai Expressway

Partially operational 258 km expressway connecting Bengaluru and Chennai.

The Bengaluru–Chennai Expressway, designated National Expressway 7 (NE-7), is a 258 km access-controlled highway linking two of South India's largest cities: Bengaluru (Karnataka's capital) and Chennai (Tamil Nadu's capital). Passing through three states, it permits speeds up to 120 km/h and was officially designated a National Expressway on 1 January 2021, with a total project cost of approximately US$1.9 billion. The route runs from Hoskote near Bengaluru to Sriperumbudur near Chennai and is being opened in phases. When complete, it will significantly cut travel times between the two tech and cultural hubs of southern India.