Section 12(2) in The Assam Engineering (Irrigation Department) Service Rules, 1978
(2)Subject to suitability as may be decided by the Board and by the Appointing Authority as set forth in Rule 13 and also subject to possessing such qualification and experience as may be prescribed by the Governor, from time to time, a member shall be eligible for promotion to the corresponding higher cadre in the manner hereinafter provided. The qualifications and experience prescribed as on the date of commencement of these rules are furnished in sub-rules (3) and (4) of this rule and also in Schedule III :(i)From Assistant Engineer to Assistant Executive Engineer.(ii)From Assistant Engineer and Assistant Executive Engineer to Executive Engineer.(iii)From Assistant Research Officer, Research Station to Research Officer, Research Station.(iv)From Executive Engineer to Superintending Engineer.(v)From Superintending Engineer to Additional Chief Engineer.(vi)From Additional Chief Engineer to Chief Engineer.(vii)From Chief Engineer to Secretary :Provided that 14 per cent of the number of posts of Executive Engineer, as on 1st January, 1973 and thereafter 20 per cent of the number of vacancies occurring in a year in the cadre of Executive Engineer, shall be reserved for being filled up by promotion of S.E.S., Sub-divisional Officers/Sub-divisional Officers (T.C) encadred as Assistant Engineers :Provided further that there shall not be any such reservation when all the Sub-divisional Officers/Sub-divisional Officers (T.C.) mentioned in Rule 22(4) are adjusted.
