Q. In which year Calcutta Flag designed by Sachindra Prasad Bose unfurled in Calcutta? Answer:
1907
Notes: Sachindra Prasad Bose was a popular Indian freedom movement activist. The Calcutta flag was designed by him which was unfurled on 7 August 1906 in Calcutta. The flag had three horizontal bands of equal width (From top to bottom orange, yellow, green). The word Vande Mataram was written in the middle in Devnagari script.