HomeUPSCOctober 17, …………….was observed as Khilafat Day, when the Hindus along with Muslims in fasting observed hartal on that day. 72. October 17, …………….was observed as Khilafat Day, when the Hindus along with Muslims in fasting observed hartal on that day.By Admin / October 4, 2025 A. 1908 B. 1909 C. 1916 D. 1919 ✅ The correct answer is option D.