Question

write down the significance of Lahore session of the Congress​

Answer 1

It was in the Lahore session of 1929 when the president of Congress party-Nehru declared 26th January ,1930 as the date when India will get complete freedom or "Purna Swaraj".It was decided that 26th January would be celebrated as Independence Day,but unfortunately we got our actual freedom on 15th august,1947

Answer 2

In December 1929, under the presidency of Jawaharlal Nehru, the Lahore Congress formalised the demand of ‘Purna Swaraj’ or full independence for India. It was declared that 26 January 1930, would be celebrated as the Independence Day when people were to take a pledge to struggle for complete independence. 

hope it will be helpful.