5. When was the Indian Constitution adopted?

(A) 15th August, 1947
(B) 26th November, 1949
(C) 26th January, 1950
(D) 2nd October, 1952

Ans: (B) 26th November, 1949

Explanation: The Constitution of India was adopted on November 26, 1949, and it came into effect on January 26, 1950, which is celebrated as Republic Day.