Civil Service Personnel Rules Rule 201
201. According to the findings by hearing the witnesses during the course of the departmental enquiry or according to the statements of the witnesses, the original charge may be altered or amended or added or a new charge may be framed by the Departmental Enquiry Board if it is found necessary. If the charge is altered or amended, the charged service personnel shall be allowed to take some more time to submit the written statement and also to produce the new list of witnesses and to recall the witnesses to examine.