When was the first Constituent Assembly election held in India?

1946

The correct answer is Option 2 - 1946

The first Constituent Assembly election in India was held in 1946. These elections were conducted under the provisions of the Cabinet Mission Plan, which aimed to create a Constituent Assembly tasked with drafting the Constitution for independent India. The members elected in these elections were responsible for framing the Constitution of India, which ultimately came into effect on January 26, 1950, marking the birth of the Republic of India.