Explanation:

The Komagata Maru incident involved the Japanese steamship Komagata Maru on which a group of citizens of the British Raj attempted to immigrate to Canada in 1914 but were denied entry.
Komagata Maru sailed from Hong Kong, then a holding of the British Empire, via Shanghai, China, and Yokohama, Japan, to Vancouver, British Columbia, Canada, in 1914, carrying 376 passengers from Punjab, British India. Of them, 24 were admitted to Canada, but the other 352 passengers were not allowed to disembark in Canada, and the ship was forced to return to India