The correct option is B.N. Rau
Explanation
The formulation of the Indian Constitution involved extensive research into global constitutional precedents. This preparatory work was spearheaded by the Constitutional Advisor to the Constituent Assembly, who provided the necessary intellectual and comparative foundation for the Drafting Committee.Detailed
- Sir B.N. Rau (Benegal Narsing Rau): He was appointed as the Constitutional Advisor to the Constituent Assembly. He prepared a series of background papers based on a close study of the political systems and constitutions of other countries (such as the USA, Canada, Ireland, and the UK). He also prepared the initial draft of the Constitution in October 1947, which served as the basis for the Drafting Committee's work.
- Dr. B.R. Ambedkar: He was the Chairman of the Drafting Committee. His role was to scrutinize, debate, and refine the draft constitution, incorporating the background work provided by the advisor and the assembly's debates.
- S.N. Mukherjee: He was the Chief Draftsman of the Constitution in the Constituent Assembly, responsible for the complex task of putting the proposals into precise legal language.
- K.M. Munshi: He was a prominent member of the Drafting Committee and the Order of Business Committee, but he was not the primary author of the comparative background papers.
Key Takeaway:
Sir B.N. Rau, as the Constitutional Advisor, conducted the comparative study of foreign constitutions and prepared the background papers and the first draft, whereas Dr. B.R. Ambedkar chaired the committee that finalized the Constitution.