Determine the correct chronology about the reorganisation of the following states:

The correct answer is - Assam-Nagaland-Sikkim-Goa Key Points ​ Assam – Became a constituent state in 1950 (when the Constitution came into force on 26 January 1950 ). It was one of the original states of the Indian Union . Nagaland – Formed in 1963 (officially became the 16th state of India on 1 December 1963 ). Created by the State of Nagaland Act, 1962 . Sikkim – Became an associate state in 1974 and a full-fledged state in 1975 (under the 36th Constitutional Amendment Act, 1975 ). Goa – Liberated from Portuguese rule in 1961 , Became a Union Territory (Goa, Daman & Diu in 1962), Granted statehood on 30 May 1987 (under the 56th Amendment Act, 1987 ).