History · Nationalist Movements Overseas

The individual described below was an Indian revolutionary associated with overseas nationalist activities in the early 20th century. He played a leading role in the establishment of the Ghadar movement in 1913. While in the United States, he was closely linked with labor activism and intellectual circles. His published works dealt with religion, society, and politics, including titles such as 'Hints for Self Culture' and 'The Social Conquest of the Hindu Race'. The above description best fits which one of the following personalities?