G.S.Singhvi, J.

1. The State of Punjab has come in appeal against the order dated March 21, 1991, passed by the learned Single Judge quashing the order of reversion of the respondent from the post of General Manager to that of Works Manager.

2. The facts necessary for deciding the appeal are that the writ petitioners (respondent herein) who is a Scheduled Caste of Punjab, joined service as works Manager in the Punjab Roadways w.e.f. 6.9.1976. He was promoted as ad hoc General Manager vide order dated 14.5.1977 issued by the Secretary, Department of Transport, Punjab. After one year and five months he was reverted to the post of Works Manager. The petitioner challenged the order of reversion by filing C.W.P. No. 9411 of 1988. He averred that although in the final seniority list of Works Manager issued by the Government in 1988, he was placed at No. 5 but Shri Jagir Singh, who was junior to him and who was shown at serial No. 6, was promoted as General Manager vide order dated 11.3.1987 ignoring his seniority and this action of the respondent (appellant herein) amounted to violation of his fundamental right to equality. After about two months he too was promoted as ad hoc Gen