The Defence Security Corps (DSC), previously known as Defence Department Constabulary Centre, was founded on 25 April 1947 at Mathura in Uttar Pradesh state in north India. The Defence Security Corps, with 31,000 personnel, provides security at Defence Ministry sites. The role of Defence Security Corps is to ensure the protection and security of designated Defence Installations against sabotage and pilferage. The Central Industrial Security Force (CISF) and the Defence Security Corps (DSC) provide security at Indian Ordnance Factories, India's nuclear laboratories and Defence Research and Development Organisation (DRDO) establishments, respectively. The CISF is purely a civilian Central government security force and though the DSC is a force under the Ministry of Defence and it comprises m