Thanx a lot for responding to the query.
I Have one more issue.
Suppose I have a set of tabe in a data base.
I had imported those tables to create a tabular mode and performed the required operations.
Then I deployed that project and created report from that model.
Now if data in the source got changed then how does those changes reflect in the tabular model.
Is there any option to reprocess the model or cube as it is given in SSAS.