ABOUT US The Defence Services Officers' Institute (DSOI Club) provide Social and recreational facilities to the officers' of the Defence Services, both serving and retired, and their families who wish to be members and to provide combined officers' mess facilities to them. Foundation Stone Jointly laid on 13th August 2004 by General N C Vij, PVSM, UYSM, AVSM, ADC, Chief of the Army Staff Admiral Arun Prakash, PVSM, AVSM, Vr C, VSM, ADC, Chief of the Naval Staff Air Chief Marshal S Krishnaswamy, PVSM, AVSM, VM, ADC, Chief of the Air Staff inaugurated on 09th September 2007.