Explanation:

Here’s what you need to know:

- Hardit Singh chartered the Komagata Maru. He was a Sikh businessman who led the passengers from India to Canada in 1914, challenging the racist immigration laws of the time.

- Mohammad Barakatullah was a revolutionary and freedom fighter, mostly active in anti-British movements. He didn’t charter the ship.

- Ram Chandra was another member of the Ghadar Party, involved in revolutionary activities but not directly linked to the Komagata Maru’s charter.

- Balwant Singh also participated in revolutionary circles but, again, not the main figure behind the voyage.

What this really means is: Hardit Singh is the one in the spotlight for the Komagata Maru episode. The others were all important in the independence struggle, just not for this story.