Hi Vijay,
The first thing that I would try is to get the Infoobject in the Alert Monitor. Check the following SAP documentation to find a Macro:
https://help.sap.com/saphelp_scm50/helpdata/en/1d/310eadd0ee11d4b2e40050da385632/content.htm
If this does nor help, yuo will probably need to make a custom program.
Then, once you get the Alert in an Alert Profile /SAPAPO/AMON_SETTING, use t-codes /SAPAPO/AMONMSG and /SAPAPO/AMONMSG_SEND.
Kind Regards,
Mariano