(a) Casual leave is not recognized by the Civil Service Regulations or Fundamental Rules and an officer absent on casual leave is not treated absent from duty. Government will make no arrangement for a substitute in the place of officer absent on such leave. The officer granting the leave and the officer taking it will be held responsible if the public service suffers in any way from the absence of the officer on casual leave.

(b) Limitations and restrictions: Casual leave may not be combined with any other kind of leave, and ordinarily may not extend to more than six consecutive days, or more than twelve days in any one calendar year. The Commissioner of Excise is however authorized in special cases, to grant casual leave to officers subordinate to him in excess of ten days. If casual leave is taken prefixing and suffixing the gazetted holidays, those holidays shall not be counted as casual leave subject to such instruction issued by Government of Assam from time to time.

(c) Authorities who can grant casual leave: The under mentioned authorities can grant of casual leave to the officers named in the following list: