Multiple choice 1st permanent chairman of Constituent Assembly was Sacchidananda Sinha Dr. Rajendra Prasad Pt. Nehru Bal gangadhar Tilak Reveal answer Fill a bubble to check yourself B Correct answer Explanation Dr. Rajendra Prasad was elected as the first permanent president of the Constituent Assembly on December 11, 1946. Sachchidananda Sinha served only as the temporary chairman for the first meeting.