1. Jallianwala Bagh Massacre: The brutal killing of innocent people by British troops at Amritsar in 1919 shocked the nation and fueled anger.
2. Rowlatt Act: The oppressive act of 1919 allowed the government to arrest people without trial, leading to widespread protests.
3. Khilafat Movement: Gandhi supported the movement to unite Hindus and Muslims against British rule, making it a key cause of the Non-Cooperation Movement.