The Territorial Waters, Continental Shelf, Exclusive Economic Zone and Other Maritime Zones Act,1976
Section 8. Historic waters
(1) The Central Government may, by notification in the Official Gazette, specify the limits of such waters adjacent to its land territory as are the historic waters of India.
(2) The sovereignty of India extends, and has always extended, to the historic waters of India and to the seabed and subsoil underlying, and the air space over, such waters.