Long term success of a corporate entity lies in internalization of ethical values and ensuring that these are worn irretrievably into company policies and practices. Vigilance department has an important role to play in ushering transparency, efficiency and integrity to working of the organization. Over the years vigilance function has evolved from a policing function to risk assessment, analysis and control function. By ensuring fair play, justice and preventing seepage of resources it promotes morale, efficiency and thereby better bottom-line.

ONGC's Board is chaired by Dr. Alka Mittal | Director (HR) and Chairman & Managing Director - Additional Charge of this Maharatna Company.The vigilance set up in ONGC group of companies is presently headed by CVO(Chief Vigilance Officer) Mr. Ranjan Prakash Thakur. There are 17 vigilance units, spread across the organization at various Regions, Assets, Basins and Plants. In addition to these units, CVO also looks after the vigilance set up in ONGC Videsh Limited(OVL).Under the able guidance of CVO, vigilance department in ONGC is constantly endeavors towards evolving best corporate practices.