Chennai South Lok Sabha constituency

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.

After 2009
After delimitation, Chennai South consists of following constituencies

Before 2009
Chennai South Lok Sabha constituency is composed of the following assembly segments:
 * 1) Triplicane (defunct)
 * 2) Mylapore
 * 3) Saidapet
 * 4) Alandur (moved to Sriperumpudhur)
 * 5) Tambaram (moved to Sriperumpudhur)
 * 6) Thiyagarayanagar
 * 1) Thiyagarayanagar