Hi JayaSantoshKumar,
I think you may need Actual by Post TimeSheet and ACWP cost.
PRASSIGNMENT table has PRACTSUM column and ACTCOST_SUM column.
If you have post 2 hours by TimeSheet, PRACTSUM column value will be 2*3600(seconds) = 7200, and ACTCOST_SUM value will be ACWP cost.
You can sum up these values with group by task id and you will get amount of Actual Cost for Task.
If you run [Update Earned Value and Cost Totals] job or [Task list]->Actions->Update Cost Totals, you will see ACWP in Task List.
Regards,
Shoichi