Calcutta Hawkers' Men Union is a

trade union A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages ...

of hawkers in Kolkata. CHMU was founded in 1971. CHMU is affiliated to All India Trade Union Congress. Its membership is mainly based amongst food vendors.

References

Ritajyoti Bandyopadhyay, ''Streets in Motion: The Making of Infrastructure, Property, and Political Culture in Twentieth-century Calcutta'', Cambridge: Cambridge University Press, 2022: https://www.cambridge.org/core/books/streets-in-motion/2D42F4BF0D2086A1DBB254A5120ACB42, https://doi.org/10.1017/9781009109208 Trade unions in India All India Trade Union Congress Trade unions in West Bengal Retail trade unions Organisations based in Kolkata Street vendors Trade unions established in 1971 1971 establishments in West Bengal {{India-trade-union-stub