Hi Shyam - You can fetch/read those alerts using the "AlertRetriveAPI" and send them to JMS receiver.
Please go throug the below blog -
Customize E-Mail Body and Subject in Alerts in SAP PI 7.31 – Java Stack Only – Part 1 – ESR
Also i've already shared another possible approach in your previous thread..question 1..
Is it possible to create a log mesage for any error which occurs in SAP PI 7.4