Hi Sidharth,
Check the below thread:
http://scn.sap.com/thread/3340726
In that you would find it's mentioned that :
"The second column view is activated using the CREATE CALCULATION SCENARIO command. It appears to be build off the parent OLAP column view but using a distinct syntax. In addition this view has all of the calculated columns that were missing from the OLAP column view."
When we use calculated columns in our Analytic View, these additional OLAP view is created using Calculation Scenario
Regards,
Vivek