When did the Jallianwala Bagh tragedy occur? What did General Dyer do without warning people not to hold a public meeting?
OR
Which tragic incident prompted Gandhi to launch the Non-Cooperation Movement?

Why was the Khilafat Committee formed in 1919?
Or
Why was the Khilafat Movement launched?

What was the programme of the Khilafat Movement?

Mention one item each of the positive and negative programme of the Non-Cooperation Movement.