Correct option is D
The 36th Amendment Act of 1975 made Sikkim a full-fledged state of India. Prior to this, Sikkim was a special protected state or a kingdom under the Treaty of Tumlong and later an Associate State with a special status.
Treaty of Tumlong (1973): Before Sikkim became a part of India, it had a special arrangement under the Treaty of Tumlong, which made it a protected state with its own monarchy.
Incorporation of Sikkim: The decision to integrate Sikkim was taken after the 1975 Sikkimese referendum, in which a majority of the people voted in favor of joining the Indian Union.
Significance of the 36th Amendment: The 36th Amendment Act not only granted full statehood to Sikkim but also removed its separate legal status, integrating it into the Indian legal and political framework.
Additional Information:
Earlier Amendments: Prior to the 36th Amendment, Sikkim was an Associate State (1950-1975), with its own local government and special provisions for integration with India.
Sikkim’s History: Sikkim was initially a kingdom under the rule of the Chogyal (monarch) and became a protectorate of India in 1950 before achieving full statehood in 1975.