Section 14(1) in Indian Administrative Service (Departmental Examination) Rules, 1962
(1)Any officer of the Indian Administrative Service posted in the areas mentioned in Part I of Appendix III will have to pass the examination in the tribal language mentioned therein against the district in which he is posted, by the lower standard, within a period of eighteen months from the date on which he is posted to that district. If he fails to do so his increments will be stopped until such time as he passed the examination:Provided that if an officer is prevented from passing the examination by circumstances beyond his control, Government may grant him such further time for passing the examination as they consider fit.
