Section 21 in The Assam Subordinate Engineering (Irrigation Department) Service Rules, 1978
21. Seniority.
(1)The seniority of a member in a cadre appointed by direct recruitment or by promotion shall be determined according to the order of merit in the respective list mentioned under sub-rule (5) of Rule 12 and sub-rule (1) of Rule 16, if he joins the appointment within 15 days from the date of receipt of the order or within the extended period as mentioned in Rule 17.(2)If a member fails to join the appointment within the initial 15 days of receipt of the order or within the extended period, as mentioned in Rule 17, but joins later, his seniority shall be determined in accordance with the date of joining.(3)A member appointed by promotion against a vacancy occurring in a year shall be senior to a member appointed by direct recruitment of that year.
