Which of the following states became an integral part of the Indian Union in 1975?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Sikkim
Sikkim was a kingdom under the Chogyal and an Indian protectorate after 1950. In April 1975 its assembly voted to abolish the monarchy and a referendum supported joining India; the 36th Constitutional Amendment then made it the 22nd state of India on 16 May 1975.