The document summarizes the key committees and their chairs in India's Constituent Assembly during the drafting of the country's constitution. It notes that Dr. Rajendra Prasad chaired four important committees and was later elected as India's first President. Sardar Vallabhbhai Patel chaired the Advisory Committee on Fundamental Rights and played a pivotal role in uniting princely states. Jawaharlal Nehru chaired three committees and later became India's first Prime Minister. Dr. B.R. Ambedkar served as the chair of the crucial Drafting Committee. It provides brief details about other leaders who chaired important sub-committees during the constitution drafting process.