The term 'Bahujan' refers to:

SC, ST, OBC and minorities

The correct answer is option (3) - SC, ST, OBC and minorities

During the 1980s, a significant upsurge in the political mobilization of Dalits was witnessed. In 1978, the Backward and Minority Communities Employees Federation (BAMCEF) was established, setting itself apart from conventional government employee unions. BAMCEF strongly advocated for political empowerment of the 'bahujan' populace, comprising Scheduled Castes (SC), Scheduled Tribes (ST), Other Backward Classes (OBC), and religious minorities. This laid the foundation for subsequent entities like the Dalit Shoshit Samaj Sangharsh Samiti and later the Bahujan Samaj Party (BSP), all under the leadership of Kanshi Ram.