Which individual was NOT a member of the Constitution Drafting Committee?

The Constitution Drafting Committee, appointed on August 29, 1947, consisted of seven members who finalized the draft in February 1948. These members were:
Dr. B.R. Ambedkar (Chairman), who later became India's first Law and Justice Minister
Alladi Krishnaswami Ayyar
N. Gopalaswami Ayyangar
K.M. Munshi
Mohammad Saadullah
B.L. Mitter (later replaced by N. Madhav Rau)
D.P. Khaitan (later replaced by T.T. Krishnamachari)
Rajendra Prasad was not a member of this committee, though he served as the President of the Constituent Assembly.