The Lok Sabha constituency Chennai South is one of three constituencies in Chennai, Tamil Nadu. Its Tamil Nadu Parliamentary Constituency number is 3 of 39. It was formerly known as Madras South. It was created in 1957 through bifurcation of Madras Lok Sabha constituency. It is one of the most populous parliamentary constituencies in South India.

Assembly segments

After 2009

After delimitation, Chennai South consists of following constituencies

Before 2009

Chennai South Lok Sabha constituency is composed of the following assembly segments:

Members of the Parliament

Election results

General Elections 2024

General Elections 2019

General Elections 2014

General Elections 2009

General Elections 2004

General Elections 1999

General Elections 1998

General Elections 1996

General Elections 1991

General Elections 1989

General Elections 1984

General Elections 1980

General Elections 1977

General Elections 1971

General Elections 1967

General Elections 1962

General Elections 1957

General Elections 1951