Explanation:

 The revolutionary Gadri laid the foundations of the communist movement in Punjab. The Bolshevik Revolution of 1917 inspired revolutionary movements around the world, and the Gadar Party also began to take a socialist direction. Two prominent party activists Gadar Ratan Singh and Bhai Bhai Santokh Singh arrived in Moscow in 1922 and participated in the Fourth Congress of the Communist International. They came back and decided to start publishing Kirtee (which finally saw the light in 1926), and to send the Gadar party activists in Moscow for ideological education. 75 Gadar party members at different times were sent to Moscow. This included several prominent leaders - including Baba Bhagat Singh Bilga (the living legend centennial Prof. Chaman Lal who has dedicated his book) who British 'Gadar' directory describes as the "most dangerous rebel, 'and Bujha Singh Baba, who was later killed as Naxalites in a police encounter in 1970.