The Indian National Mineworkers' Federation (INMF) is a trade union representing miners in India.
The union was founded in 1949 on the initiative of the Indian National Trade Union Congress, bringing together numerous regional unions of miners.
[1] It grew steadily, having 150,000 members by 1960,[2] and 351,000 by 1997, at which time the federation had 139 affiliated unions.
[3] By 2017, the union represented 40% of the workers for Coal India.
[4]