Answer:
As these acts were sending people to jail without any trial in enraged everyone. People started opposing this acts, and that is why a large number of Muslims and Hindus have gathered in Amritsar to protest.
Step-by-step explanation:
It is interesting to stress out that most of the people weren't even aware that the British authorities were forbade the gatherings. A lot of them were killed and this enraged them even more. This led to spreading of nationalism throughout country.