Palk Strait (Tamil: பாக் சலசந்தி) is a strait between the Tamil Nadu state of India and the Mannar district of the Northern Province of the island nation of Sri Lanka. It connects the Bay of Bengal in the northeast with the Palk Bay and thence with the Gulf of Mannar in the southwest. The strait is 33 to 50 miles (53 to 80 km) wide. Several rivers flow into it, including the Vaigai River of Tamil Nadu. The strait is named after Robert Palk, who was a governor of Madras Presidency (1755-1763) during the Company Raj period.
It is studded at its southern end with a chain of low islands and reef shoals that are collectively called Adam's Bridge. This chain extends between Dhanushkodi on Pamban Island (also known as Rameswaram Island) in Tamil Nadu and Mannar Island in Sri Lanka. The island of Rameswaram is linked to the Indian mainland by the Pamban Bridge.
As from 1914, there used to be regular trains from Madras/Chennai to Dhanushkodi, a ferry to Talaimannar on Mannar Island, and thence a train to Colombo. In 1964, a cyclone destroyed Dhanushkodi and the railway and caused severe damage along the shores of Palk Strait and Palk Bay. Dhanushkodi was not rebuilt and the railway from Talaimannar to Mahawilachchiya in Sri Lanka was given up. There was a ferry between small piers in Rameswaram and Talaimannar, but this was discontinued till date.
Proposed canal 
The shallow waters and reefs of the strait make it difficult for large ships to pass through, although fishing boats and small craft carrying coastal trade have navigated the strait for centuries. Large ships must travel around Sri Lanka. Construction of a shipping canal through the strait was first proposed to the British government of India in 1860, and a number of commissions have studied the proposal up to the present day. The most recent study of the Sethusamudram Shipping Canal Project, as it is now called, was an environmental impact assessment and a technical feasibility study commissioned by the Tamil Nadu government in 2004.
However, the plan encountered opposition from various religious circles. The Indian epic poem Ramayana, written thousands of years ago in Sanskrit and an important Hindu text, recounts how Rama, with the help of an army of vanaras, built a bridge of stones across the sea to Lanka to rescue his wife Sita from the Asura king Ravana. The Ram Karmabhoomi movement, encouraged by a NASA satellite photograph of Rama's Bridge, was formed to prevent the shipping canal from being built.
Rahul Gandhi, a leader of the Congress party, sparked controversy by saying that Rama does not exist. This statement was later taken by Congress as 'Current Government said so'. Later the Government of India, in an affidavit in the Supreme Court of India, stated that there was no historical proof of the bridge being built by Rama.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Map of Sri Lanka with Palk Strait and Palk Bay
- Distances measured on Google Earth
- "Adam's bridge". Encyclopædia Britannica. 2007. Retrieved 2007-09-14.
- Land's end
- Sri Lanka, India to relaunch ferry service after three decades
- Harnessing the Troubled Waters: Sethusamudram Canal Project
- "Hanuman bridge is myth: Experts". Times of India. October 19, 2002. Retrieved 2011-04-25.