In which annual session of the Indian National Congress was the proclamation of commitment to "Purna Swaraj", or complete independence, taken?

Lahore, December 1929

The correct answer is Option (1) → Lahore, December 1929

At the Lahore Session of the Indian National Congress in December 1929, under the presidency of Jawaharlal Nehru, the resolution of “Purna Swaraj” (Complete Independence) was adopted. Following this, 26 January 1930 was observed as Independence Day across the country.