Concept:The Constituent Assembly was formed based on a British proposal to draft India’s constitution.
Explanation:The idea of a Constituent Assembly was first suggested by M.N. Roy in 1934.
The Cabinet Mission Plan of 1946 provided the framework to set up the Constituent Assembly.
It was established in November 1946 under this plan.
Members were elected by provincial assemblies using the single transferable vote system.
Initially, the Assembly had 389 members. After partition, it reduced to 299.
Dr. Sachchidananda Sinha was the first interim chairman. Later, Dr. Rajendra Prasad became the president.
The Assembly drafted the Constitution for independent India.
Answer:D. under the Cabinet Mission Plan, 1946