Question

In which session of the Indian National Congress was the demand for the Purna Swaraj formalized​

Answer 1

Lahore session of 1929 adopted policy of Purna Swaraj.....

Hope it helps..

Answer 2

Answer:

Lahore session of Congress

The demand for 'Purna Swaraj was formalized in the Lahore session of Congress in December, 1929.