Section 23(1) in Assam Education Service Rules, 1982
(1)Inter-se seniority of the members of the service belonging to each of the cadres shall be in the order in which their names appear in the select list prepared under Rule 6(d) or the list prepared under Rule 12(5) as the case may be, provided he joins his appointment within 15 days from the date of receipt of the order or within the extended period :Provided that if a member is prevented from joining within this period by the circumstances of public nature or for reasons beyond his control the Appointing Authority may extend it for a further period of 15 days. If the period is not so extended the seniority shall be determined according to the date of jointing.
