Can any one suggest me how can I call my TBO in SBO.
Unlike SBO, we dont call TBO explicitly. It will be called automatically whenever objects of the particular type does an particular action. So its not required to call TBO inside SBO.
If your TBO simply overrides the "do" methods, they will be called automatcially whenever the object is manipulated by the SBO. If you need to call a cutom TBO method, simply get the object like you would any other sysobject, cast it to your TBO interface, and call the method. This will require the TBO and the TBO interface file to be deployed with the SBO code. There are some good tips in this discussion: http://community.emc.com/thread/144875 and this blog post: http://msroth.wordpress.com/2011/08/17/emc-bog-whitepaper/#comments.