Solution:

• India signed the Declaration by United Nations on 1 January 1942 and was represented by Girija Shankar Bajpai who was the Indian Agent-General at the time.
• Afterwards the Indian delegation led by Sir Arcot Ramaswamy Mudaliar signed the United Nations Charter on behalf of India during the historic United Nations Conference on International Organization held in San Francisco, United States on 26 June 1945.
• Sir A. Ramaswamy Mudaliar later went on to serve as the first president of the United Nations Economic and Social Council.
• Technically, India was a founding member in October 1945, despite it being a British colony. India, Canada, South Africa, New Zealand and Australia were all British colonies but were given independent seats in the United Nations General Assembly.