Vigilance Department works to ensure transparency in the Systems and Procedures of the organization especially related to public procurement and recruitments etc. Majorly the functions of Vigilance is divided into three categories, as under :
 (i) Preventive vigilance 
(ii) Punitive vigilance 
(iii) Surveillance and detection.

All efforts have to be made to implement all the instructions issued by the CVC through its Vigilance Manual, circulars, and office memorandum, etc. and all the instructions of the Govt. of India so that corruption free governance can be established. Timely disposal of complaints, implementations of the CVC’s advice, timely completion of disciplinary proceedings are given high priority. System improvements through the periodic, surprise, and CTE type inspections and through the scrutiny of audit reports are carried out. The vigilance department needs to be in constant touch with the CBI and coordinate vigilance-related issues with the CBI including the preparation of an agreed list and the list of officers of doubtful integrity.