HomeUPSCIn which session of Indian National Congress the tricolor flag was unfurled for the first time? In which session of Indian National Congress the tricolor flag was unfurled for the first time?By Admin / October 4, 2025 A. Calcutta Session, 1920 B. Annual Session of Congress at Nagpur, 1920 C. Lahore Congress, 1929 D. Haripura Congress Conference, 1938 ✅ The correct answer is option C.