The Petroleum and Explosives Safety Organization (PESO), formerly known as Department of Explosives, since its inception on 05/09/1898, has been serving the nation as a nodal agency for regulating safety of hazardous substances such as explosives, compressed gases and petroleum. PESO’s major work is to administer the responsibilities delegated under the Explosives Act 1884 and Petroleum Act 1934 and the Rules made there under with the motto "Safety First".

PESO has its Headquarters at Nagpur in Maharashtra and serves through five Circle Offices viz Agra, Chennai, Faridabad, Kolkata & Mumbai and their subordinate Sub-Circle offices across the country.

For Liaison Work To Acquire Explosive License Any Place in India