The Directorate of Vigilance functions under the overall supervision and control of Chief Secretary, who is also Chief Vigilance Officer for the Government of the National Capital Territory of Delhi. Directorate is headed by the Director (Vigilance), who is also ex-officio Joint Commissioner of Police Anti Corruption Branch. It has two wings i.e. Anti Corruption Branch is supervised by the Joint Commissioner of Police (A.C. Branch) and the Vigilance Branch is looked after by the Addl. Secretary (Vigilance).

This Directorate deals with disciplinary cases against delinquent gazetted officers of all departments under the Govt. of NCT of Delhi. Complaints against gazetted/non-gazetted employees received through general public, CBI, CVC and other sources are also processed. In regard to specific serious irregularities, investigation is got done through Anti-Corruption Branch which functions as investigating agency. This Directorate also functions as nodal agency for advice on vigilance matters to CVO's of local bodies, Vigilance Officers, HOD's and other Organizations of Govt. of Delhi.