Step 1: Use the process of elimination to identify the correct building.
- The question states that the building was designed by Raj Rewal and was demolished in 2017.
- Let's analyze each option:
Option A: Old Parliament House, New Delhi
- This building was designed by Edwin Lutyens and is still standing. Since it was not demolished in 2017, this option is incorrect.
Option B: Bharat Bhavan, Bhopal
- This building was designed by Charles Correa. It is an art and cultural center and has not been demolished.
Option C: Hall of Nations, Pragati Maidan, New Delhi
- This building was designed by Raj Rewal and was demolished in 2017, causing significant controversy.
Option D: Vidhan Bhavan, Bhopal
- This building was designed by Charles Correa and remains in use today. It was not demolished in 2017.
Step 2: Confirm historical context.
- The Hall of Nations was built in 1972 for the Asia 72 Trade Fair.
- It was India's first large-scale exposed concrete structure, showcasing modern architectural innovation.
- Despite opposition from architects and heritage conservationists, it was demolished in April 2017 to make way for new development at Pragati Maidan.
Thus, the correct answer is option C.