The British treated the Indians like they weren't worth anything. Even though they were in India. The British basically treated them like slaves.
The Indians opinion on the British was they wanted them to leave so they could have their country back. The Indians were sad that they came to their country and took it from them.
The Jallianwala Bagh massacre, also known as the Amritsar massacre, took place on 13 April 1919, when Acting Brigadier-General Reginald Dyer ordered troops of the British Indian Army to fire their rifles into a crowd of unarmed Indian civilians in Jallianwala Bagh, Amritsar, Punjab, killing at least 400 people