The Drafting Committee began to scrutinize the Draft Constitution prepared by the Constitutional Advisor, along with other notes, reports and memoranda on October 27th, 1947. It proceeded to make changes and it finally submitted its Draft Constitution to the President of the Assembly on the 21st of February 1948.
The minutes of meetings of the Drafting Committee can be found in Volume 3 of Shiva Rao’s Framing of India’s Constitution pp. 316- 506. The Draft Constitution presented to the President of the Constituent Assembly can be found in Volume 3 of Shiva Rao’s Framing of India’s Constitution p. 517.