Question

why martial law was imposed​

Answer 1

Answer:

Martial law may be declared in cases of major natural disasters; however, most countries use a different legal construct, such as a state of emergency. Martial law has also been imposed during conflicts, and in cases of occupations, where the absence of any other civil government provides for an unstable population.

Answer 2

In a summary, General Dyer enacted an Act on April 13, 1919, called the martial law stating that no more than 2 people can form a group and meet at a place. This act was authorized to prevent any form of a mobilised protest against the ruling authorities.