Subject to provisions,of sub-rule (2), the Committee referred to in sub-rule (1) of rule 19, shall consider the . cases of all persons who on the 1st day of January of that year had completed such number ofyears ofseIVice(whetherofficiatingor substantive)in the post fromwhich promotion is to be made or on any other post:
or post declared equivalent...thereto by-the Govemment-as-specified. in.- column (3)of the Schedule-IVand are within the zone of consideration in accordance with the provisions of rule 21 :
Provided that the service of the released officers of the emergency commission and short service commission after their appointments in the service shall be counted from the date from which they have .been deemed to have been appointed in the service in accordance with General Administration Department's No.\2266/1967/1/3/67, clt. 21- 10-1967: . .
. Provided further that no junior person shall be considered for selection for selection grade/promotion in !preference to the persons senior to him, only on the basis of completing the prescribed period of service.