Chandan Kumar is associated with Rashtriya Hamal Panchayat, a national trade union which works with informal workers. He is the National Coordinator of the Working Peoples' Charter, a coalition of over 150 workers collectives organising informal workers across India. He is a member of National Minimum Wage Advisory Board (a statutory committee of Government of India) and NHRC Core Group on Bonded Labour. He has been part of numerous labour policy formulation, such as construction workers, bonded labour, migrant workers, domestic workers, at state and centre level. He is part of Social Justice cluster of Asia Europe Peoples Forum, and work closely with International Trade Union Movement.