Solution:The Chauri-Chaura incident took place on February 4, 1922, in Gorakhpur. On this day, a large group of protestors, participating in the Non-Cooperation Movement, clashed with police, who opened fire.
In retaliation the demonstrators attacked and set fire to a police station, killing all of its occupant. The incident led to the deaths of three civilians and 23 policemen.
Due to this incident, Mahatma Gandhi withdrew from the non-cooperation movement.