Explanation:

The matter of Vivekanand Tiwari & Anr v Union of India and Ors dealt with the recruitment of teachers in Banaras Hindu University (BHU), a central educational institution.The petitioners sought cancellation of the then recruitment drive in the University.They demanded a fresh beginning, treating each department as a unit for calculating the number of faculty posts reserved for SCs, STs and OBCs.At that time, as mandated by the University Grants Commission (UGC), the number of SC, ST, and OBC faculty positions were calculated by treating the university as a “unit”.
By this the posts of Assistant Professor, Reader, Associate Professor and Professor of each subject or the department are placed in the same pay-scale.But their services are neither transferable nor they are in competition with each other.It is for this reason that clubbing of the posts for the same level treating the University as a ‘Unit’ would be completely unworkable and impractical.