V.S. Kokje, J.

1. The petitioner is an employee of Madhya Pradesh State Road Transport Corporation (for short the M.P.S.R.T.C). He was appointed w.e.f. August 13, 1969 as a Book Checker. Thereafter, he was promoted to the post of Upper Division Clerk on June 7, 1976, He was further promoted to the post of Bills Assistant "on February 24, 1977. The next promotional post is that of the Head Clerk. The petitioner was ordered to work as Head Clerk by an order dated June 20, 1987. According to the petitioner he was working against the vacant post. He worked on the post up to January 20, 1988. However, when the learnt of the intention of the employer to revert him back to the post of Bills Assistant, he filed an application under Section 31(3) of the M.P. Industrial Relations Act, 1960 (for short the Act'). The petitioner contended that he had become permanent Head Clerk after having completed 6 months' satisfactory service as Head Clerk. The claim is based on the provisions contained in the Standard Standing Order 2(vi), where while defining 'temporary employee' it has been provided that if an employee has been required to work continuously for more than 6 months, he shall be deemed