Step 1: Understanding the Chronology of Amendments.
- The incorporation of Dadra and Nagar Haveli as a Union Territory was done through the 1961 Amendment.
- The Abolition of the Privy Purse occurred in the 26th Amendment in 197(A)
- The Abolition of Election Tribunals was achieved through the 39th Amendment in 1975.
- The reduction of the voting age from 21 to 18 years was done in the 61st Amendment in 1988.
Step 2: Chronological Order.
The correct chronological order is:
(A) A: Incorporation of Dadra and Nagar Haveli as Union Territory (1961)
(B) C: Abolition of Privy Purse (1971)
(C) B: Abolition of Election Tribunals (1975)
(D) D: Reducing the age for voting rights from 21 to 18 years (1988)
Step 3: Conclusion.
Thus, the correct answer is (B) A, C, B, D.