Step 1: Recall the timeline of the making of the Indian Constitution.
The Constituent Assembly of India was elected to write the Constitution of India.
Step 2: Identify the date of its first meeting.
The Constituent Assembly held its first meeting on December 9, 1946.
Dr.
Sachchidananda Sinha, the oldest member, was elected as the temporary (interim) President of the Assembly.
On December 11, 1946, Dr.
Rajendra Prasad was elected as the permanent President of the Constituent Assembly.
Step 3: Evaluate other significant dates.
- (2) November - 1949: The Constitution of India was adopted by the Constituent Assembly on November 26, 1949.
This day is celebrated as Constitution Day (Samvidhan Divas) in India.
- (3) January - 1950: The Constitution of India came into force on January 26, 1950.
This day is celebrated as Republic Day in India.
- (4) August - 1947: India gained independence on August 15, 1947.
Step 4: Confirm the date of the first meeting.
The first meeting of the Constituent Assembly was held on December 9, 1946.
Option (1) "December - 1946" is correct.