(3) In the case of violation of a procedural provision, the position is this: procedural provisions are generally meant for affording a reasonable and adequate opportunity to the delinquent officer/employee. They are, generally speaking, conceived in his interest. Violation of any and every procedural provision cannot be said to automatically vitiate the enquiry held or order passed. Except cases falling under -- "no notice", "no opportunity" and "no hearing" categories, the complaint of violation of procedural provision should be examined from the point of view of prejudice, viz., whether such violation has prejudiced the delinquent officer/employee in defending himself properly and effectively. If it is found that he has been so prejudiced, appropriate orders have to be made to repair and remedy the prejudice including setting aside the enquiry and/or the order of punishment. If no prejudice is established to have resulted therefrom, it is obvious, no interference is called for. In this connection, it may be remembered that there may be certain procedural provisions which are of a fundamental character, whose violation is by itself proof of prejudice. The Court may not insist on proof of prejudice in such cases. As explained in the body of the judgment, take a case where there is a provision expressly providing that after the evidence of the employer/government is over, the employee shall be given an opportunity to lead defence in his evidence, and in a given case, the enquiry officer does not give that opportunity in spite of the delinquent officer/employee asking for it.The prejudice is self-evident. No proof of prejudice as such need be called for in such a case. To repeat, the test is one of prejudice, i.e., whether the person has received a fair hearing considering all things. Now, this very aspect can also be looked at from the point of view of directory and mandatory provisions, if one is so inclined. The principle stated under (4) hereinbelow is only another way of looking at the same aspect as is dealt with herein and not a different or distinct principle.