IREC Rule No.116: Holding Of Posts In Abeyance Or Keeping Them Unfilled
116. Holding of posts in abeyance or keeping them unfilled:
No gazetted post in Group A or B may be held in abeyance without the sanction of the authority competent to create it. If it is proposed to keep such post(s) unfilled for more than six months, the matter shall be reported to the Railway Ministry.
Note:
For the purpose of this rule, when the duties of a post are performed by another officer in addition to his own duties such post shall be considered to have been kept unfilled.