Question

in which Indian National Congress session in December 1929 was the demand for Purna Swaraj formalized

Answer 1

Hey mate here is your answer

The Indian National Congress, on 19 December 1929, passed the historic ‘Purna Swaraj’ – (total independence) resolution – at its Lahore session.

Hope this will help you....
Please mark brainliest.

Answer 2

Lahore session of 1929.