The correct answer is Poorna Swaraj Day.

• The Indian National Congress, on 19 December 1929, passed the historic ‘Purna Swaraj’ - (total independence) resolution - at its Lahore session.
• A public declaration was made on 26 January 1930 - a day which the Congress Party urged Indians to celebrate as ‘Independence Day.
• On December 31, 1929, Nehru hoisted the tricolour on the banks of the Ravi river and demanded “Poorna Swaraj” or complete self-rule, and the date set for independence was January 26, 1930.
• The day was then celebrated as Poorna Swaraj day for the next 17 years.
• The declaration was passed due to the breakdown of negotiations between leaders of the freedom movement and the British over the question of dominion status for India.
• In 1929, Lord Irwin, the then Viceroy of India, made a vaguely announced-referred to as the Irwin Declaration -  that India would be granted dominion status in the future.
• The Irwin Declaration triggered a backlash in England and told leaders in India that he could not promise dominion status anytime soon.