Section 12(2) in The Assam Agricultural Service Rules, 1980
(2)In case of specialisation a member of the service posted in connection with the specialised subject, shall be retained in"the same specialised work, on his promotion in the normal course, by creation of a higher post in the cadre to which he is so promoted keeping the lower post in abeyance if the Government considers that such an officer cannot be withdrawn from the specialised work due to non-availability of any other Officer of the lower cadre in the service to perform the specialised work.
