Dr. Rajendra Prasad was the President of the Constituent Assembly. It was composed for the purpose of drafting and adopting a constitution. The Constituent Assembly held its first meeting on December 9, 1946. Dr. Sachchidanand Sinha, the oldest member, was elected as the temporary President of the Assembly. Later, on December 11, 1946, Dr. Rajendra Prasad and H C Mukherjee were elected as the President and Vice-President of the Assembly respectively.