The India – Sri Lanka HVDC Grid Interconnection is a proposed project to link the national grids of India and Sri Lanka. The project involves the construction of a HVDC connection between Madurai in southern India, and Anuradhapura in central Sri Lanka, through the Palk Strait. The link would measure 285 kilometres (177 mi) in length, including 50 kilometres (31 mi) of submarine cables, and would take more than three years to construct.