Ecr Road is a two-lane highway connecting the capital of the Bay of Bengal, Chennai to Kanyakumari. It is connected to the East Coast Road by SH-45, NH-332A, and NH-32. This road was initially only between Chennai and Pondicherry. Then 777km has been extended to Cuddalore, Nagapattinam and Tuticorin, and Kanyakumari. These highways are maintained by Road Infrastructure Development Corporation of Tamil Nadu. Connectivity Of ECR Chennai East Coach Road Link, this stretch of Ecr Road parallels Old Mahabalipuram Road or Rajiv Gandhi Road. St Thomas Mount is a metro station located near Ecr on the Chennai metro rail line. Thiruvanmiyur Suburban Railway Station is located near this place, which is a railway station between Chennai Central. Chennai International Airport is just off the Ecr Road.