“15. Seniority —
(1) There shall be a separate categories of post-wise seniority list for all posts in different disciplines.
(2) In case of selection of officers or employees by direct recruitment / direct recruitment through lateral entry, their seniority shall be in the order in which they are recommended by the Selection Committee. For the rest proviso (3) below will apply.
I
(3) The seniority of officers and employees of the Authority shall be determined on the basis of the instructions and guidelines issued by the Central Government (Department of Personnel & Training), from time to time.
(4) A copy of the respective seniority list shall be supplied to each officer and employee.
'
(5) In case of any dispute regarding inter-se seniority of officers in the respective seniority list, the decision of the Chairman shall be final.”