Hi Diptendu,
There are two ways.
Create EAR job and deploy on the server. the job will be similar to standard job AlertConsumerJob. which will monitor the interface. check the detail in the blog
Customize Alerts Using Job in PI 7.31/PO
the other option is create alert interface which will trigger when interface is failed (The trigger part is still not very clear for me).
regards,
Harish