Explanation

Granville Austin, in 'The Indian Constitution: Cornerstone of a Nation', described the Directive Principles of State Policy as aiming at furthering the goals of social revolution (the printed question garbles this phrase), and called the Fundamental Rights and Directive Principles the 'conscience of the Constitution'. B. N. Rau was the Constitutional Adviser, K. C. Wheare wrote on federal government, and Rajni Kothari on Indian politics - none made this remark about the Directive Principles.