The line emanating from Perungudi MRTS station is envisaged to be 179 km long and is expected to traverse via Sholinganallur, SIPCOT, Kovalam, Tiruporur, Mamallapuram, Kalpakkam, Koovathur, Cheyyur, Marakkanam, Kunimedu, Kuiyilappalayam, Jipmer in Pondicherry, Pondicherry, Bahour, Varakalpattu, and Tirupadipuliyur to reach Cuddalore Port Jn.