Ramesh:
Make sure you are looking at the DETAIL view when you select these lines as they are only valid for those combinations of actions. I usually recommend that you only mitigate at the risk level as it usually the same report / mitigation that is needed for any action combination in the risk.
Your selection to mitigate on the request risk analysis needs to match what you have listed to mitigate.
Thanks.
Kevin Tucholke
SAP America