JUDGMENT

A.M.AHMADI, J.

(1) BY Advertisement No. 6/88 dated 1/12/1988, the Andhra Pradesh public service commission (for short PSC) invited applications for 60 vacancies in the cadre of Deputy Executive Engineers in different services: (a) R & B Engineering Service, (b) P.H. & M. Engineering Service, (c) Engineering Service and (d) Panchayat Raj Engineering Service in the common scale of Rs. 1980-3500 to be filled by direct recruitment. These vacancies were shown in the advertisement at Code G-l under the head central Recruitment. The educational and other qualifications for the posts in question were set out to be Bachelor of Engineering degree (Highways, Civil or Mechanical) of a recognised University for (a) and (d) services, a degree in Civil or Mechanical Engineering of a recognised University for (b) service and a degree in Bachelor of Engineering, Civil or Mechanical of a recognised University for (c) service. Insofar as (b) category is concerned, it was mentioned that preference shall be given to persons possessing five years experience in Irrigation or Execution of Water Supply and Drainage Scheme. In respect of posts in (a) and (c) categories, it was