How to change my SSB centre ? Many of the Defence Aspirants are Desirous to know that How the Centre of Service Selection Board (SSB) is Allotted. If Such Questions are Churning Around into your Mind , Get Ready to Clear this doubt from your Mind. SSB Interview is a Gateway to become Commissioned Officer . Without facing SSB interview its Impossible to Get Honour of Commissioned Officer. In some Cases Like – If you are MBBS  then it may be Possible to get Commissioned without SSB Interview otherwise SSB Interview is Mandatory in all the Entries. In Some of