Explanation:

- The Ghadar Party was a political organization founded by expatriate Indians, primarily Punjabis living in North America.

- It was formed with the aim of securing India's independence from British rule.

- Option 4: 1913 - The Ghadar Party was indeed established in 1913. This is the correct year.

- Option 3: 1915 - This year is incorrect. However, it is notable due to significant revolutionary activities by the organization during this time.

- Option 2: 1918 - This does not relate to the founding but falls in the timeline of their ongoing activities.

- Option 1: 1921 - This is not related to the foundation but is post-World War I, when many independence movements were gaining momentum.