Hi Shanmugam ,
As per the screenshot, the commitment value not updated even you created PR and PO since there was no cost element created for the Material which you are using in PR. Check the below settings.
1. Check the G/L account in Acount assignment tab of PR ME54N.
2. check that G/L Account is Whether Balance sheet Acct. or P& L Account.
3. If Balance sheet G/L Acct then create cost element for that G/L with Cost element category with "90 - Statistical Cost element for Balance sheet"
4. Create new PR with the same material after creating Cost element with cost element category 90.
I guess that you are using Valuated Project stock. I think that this may helpful to you.
Thanks
Ganesh