- Statement A is correct. Goa was granted full statehood by the Goa, Daman and Diu Reorganisation Act, 1987, which came into effect on May 30, 1987, enabled by the 56th Amendment to the Constitution. - Statement B is correct. Diu is indeed an island off the southern coast of Gujarat, located in the Gulf of Khambhat (Cambay). - Statement C is correct. Before 1987, Goa, Daman, and Diu constituted a single Union Territory. When Goa attained statehood, Daman and Diu remained a separate Union Territory, a separation effected by the 56th Amendment. - Statement D is incorrect. Dadra and Nagar Haveli, along with Goa, Daman, and Diu, were territories held by the Portuguese in India. Dadra and Nagar Haveli were liberated from Portuguese rule in 1954 and were administered as a de facto free territory until they formally joined the Union of India in 1961 as a Union Territory. French colonial possessions in India were Pondicherry, Karaikal, Mahe, Yanam, and Chandernagore, which merged with India between 1947 and 1954.