Section 5(3) in The Assistants of the Secretariat and Attached Offices Joint Cadre Act, 1989
(3)The period spent on a post, whether equivalent or higher, outside the cadre, either on deputation or otherwise shall not be counted towards seniority of the employee concerned:Provided that the period spent on posts, if any, which have been declared equivalent to the posts of Assistants, Selection Grade Assistants, Section Officers, Registrars and Under-Secretaries, as the case may be, and to which appointments and promotions are made from amongst the Assistants, Selection Grade Assistants, Section Officers, Registrars and Under-Secretaries of the Secretariat departments and attached offices, shall be counted towards seniority of the members of the joint cadre concerned in the appropriate gradation list.
