Although adopted in November 1949, the Constitution of India formally came into effect (was enforced), marking the establishment of the Indian Republic, on:
The date 26 January was specifically chosen for the Constitution's enforcement in commemoration of the earlier declaration of 'Purna Swaraj' (complete independence), which had been proclaimed by the Indian National Congress on the same date in:
A.
1946
B.
1935
C.
1942
D.
1929 (with the declaration itself made at the Lahore Session, and 26 January formally observed as 'Independence Day' from 1930 onward)