HomeUPSCOn January 15, 1905, a peaceful demonstration led by……………….. ……………at St. Petersburg was fired upon by the Czarist troops. 27. On January 15, 1905, a peaceful demonstration led by……………….. ……………at St. Petersburg was fired upon by the Czarist troops.By Admin / October 4, 2025 A. father gapon B. trotsky C. tzar nicholas D. lenin ✅ The correct answer is option A.