How was the Indian Constituent Assembly formed?

The Indian Constituent Assembly was formed for the task of framing the Constitution for independent India. The elections to the Provisional Legislative Assembly were held in July 1946. The elected members of the Provisional Legislative Assembly elected the members for the Constituent Assembly through proportional representation system. There were in total of 389 members in the Constituent Assembly. Later with the Partition of India into India and Pakistan, 299 members wrote the constitution. It included 70 members from princely states and nine women. 284 present members gave their assent and the Indian Constitution was passed.