Although the Congress in 1928 gave an ultimatum to the British Government to grant India Dominion Status by 31st December, 1929, a resolution on complete independence was passed at the Lahore session. The Congress had become a mass organisation. People of all shades had fallen heart and soul behind the Indian National Congress. Jawaharlal Nehru was the President of the Indian National Congress. The annual session of the Congress was held at Lahore (now in Pakistan) in December 1929. A resolution for complete independence or Poorna Swaraj has passed with an overwhelming majority by the participants in the session. They even celebrated the first Independence Day on 26th January, 1930, since the British Government had failed to concede to their demand of earlier resolution and ultimatum. The Indian National Flag was hoisted in Calcutta, and the members took the pledge to observe this day every year, till India would become independent. It was on this day that the Constitution of free India was promulgated in 1950.