Correct Answer: October 1945

Solution : The correct option is October 1945 .

India joined the United Nations (UN) on October 30, 1945, after ratifying the UN Charter. India became a member of the United Nations shortly after gaining independence from British rule. The country played an active role in the negotiations leading to the formation of the UN and was one of its founding members. The United Nations officially came into existence on October 24, 1945, and India, being one of the original signatories of the UN Charter, became a member on the same day.