Ramanathapuram, also known as Ramnad, is a city and a municipality in Ramanathapuram district in the Indian state of Tamil Nadu. It is the administrative headquarters of Ramanathapuram district and the second largest town in Ramanathapuram district. Soon the Ramanathapuram Civic body to be upgraded as Municipal Corporation, after merging with nearby panchayats.

East Coast Road (ECR), combination of SH-49, NH-332A, NH-32, officially known as Mutthamizh Arignar Kalaignar Road without public voting, is a two-lane highway in Tamil Nadu, India, built along the Bay of Bengal coast. It connects Tamil Nadu's state capital Chennai with Kanyakumari via Puducherry, Cuddalore, Chidambaram, Sirkali, Thirukkadaiyur, Tharangambadi, Karaikal, Nagore, Nagapattinam, Thiruthuraipoondi, Muthupet, Adirampattinam, Manora,Peravurani,Manamelkudi, Mimisal, Ramanathapuram, Rameswaram,Thoothukudi, Tiruchendur, Uvari, Kudankulam. The total length of the road is about 777 km between Chennai and Kanyakumari.