Section 5(6) in The Assam Economic and Statistical Service Rules, 1973
(6)Statistical Officer/Assistant Programmer-Category VI: Appointment shall be made in the following manner:by promotion from the select list prepared for this purpose from amongst the eligible officers of Category VII who have rendered not less than seven years of service in Category VII on the first day of the year in which the selection for promotion is made.Explanation. - To be considered eligible for promotion under this rule, member of the service shall be required to pass the prescribed departmental examination.
