Political activist and trade unionist based in Calcutta, India. He is involved in the campaign for debt cancellation and is a member of the International Council of the Committee for the Abolition of Illegitimate Debt (CADTM) and the World Social Forum. He is also a member of the South Asian Alliance for Poverty Eradication (SAAPE) and vice-president of the Progressive Plantation Workers Union (PPWU). He edits the online magazine Alternative Viewpoint.