Question

how and why workers revolution was carried out

Answer 1

They expressed the aspirations of theworkers and potential for power. ... So crucial was the place of workers self-rule in the unfolding of the revolutionthat, on the eve of taking power, Lenin was moved to theorize it in State andRevolution, written in August and September 1917

Answer 2

Between 1905 and 1917, there were periods of workers' strikes and peasant uprisings. ... They agreed that the immediate task of the coming revolution was to do away with the Tsarist state and to expropriate the large landlords so the peasants could take the land.