The Bharatiya Mazdoor Sangh (Indian Workers' Union) is the largest central trade union organization in India. It was founded by Dattopantji Thengdi on July 23, 1955, which also happens to the birthday of Bal Gangadhar Tilak.
The BMS itself claims to have over 8.3 million members. At present it is estimated around 5860 unions are affiliated to the BMS. According to provisional statistics from the Ministry of Labour, the BMS had a membership of 6215797 in 2002. It can also be noted that the BMS is not affiliated to any International Trade Union Confederation.
For individual unions affiliated to the BMS, see BMS-affiliated unions.
Girish Awasthi is the current president of the organization, and Mr.Lakshma Reddy its General Secretary.