Consider the following territories which became part of India after 15th August, 1947 : 1. Goa, Daman and Diu 2. Pondicherry 3. Sikkim 4. Dadra and Nagar Haveli Which of the following is the correct chronological order (beginning with the earliest) of their becoming part of India?

The chronological integration of these territories into the Indian Union is as follows: Dadra and Nagar Haveli was liberated from Portuguese rule in 1954 and administered by a local panchayat until its formal integration as a Union Territory on August 11, 1961 [1]. Pondicherry (Puducherry) was de facto transferred to India by the French on November 1, 1954, but its de jure transfer and formal integration occurred on August 16, 1962, following the ratification of the Treaty of Cession [2]. Goa, Daman, and Diu were annexed from the Portuguese through 'Operation Vijay' in December 1961 and formally integrated as a Union Territory shortly thereafter [1]. Finally, the protectorate of Sikkim was integrated as a full state of the Indian Union on April 26, 1975 [2]. Thus, the correct sequence is Dadra and Nagar Haveli (1954/1961), Goa (1961), Pondicherry (1962), and Sikkim (1975).

Sources

1. [1] Indian Polity, M. Laxmikanth(7th ed.) > Chapter 6: Union and Its Territory > New States and Union Territories Created After 1956 > p. 54
2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 16: India–Political Aspects > State Reorganisation > p. 13