The document summarizes the major trade unions in Mahanadi Coalfields Limited (MCL), one of India's largest coal producers. It outlines the visions and affiliations of the main unions - BMS (Bharatiya Mazdoor Sangh), INTUC (Odisha Colliery Mazdoor Sangh), HMS (Hind Mazdoor Sabha), and AITUC (All India Trade Union Congress). It also provides details on union formation, leadership positions, elections, funding sources, and recent union activities focused on workers' rights and welfare.