Hi Sravankanumuri,
I'd definitely suggest filing an Idea in our CA API Management Community here to officially request the API Portal receive functionality similar to the ping function on the API Gateway. You can create a new idea at the CA API Management community located at ca.com/talkapi and clicking on [Actions] > [Create an idea]. Don't forget to vote on it yourself after it's been filed, as the CA Communities do not auto-vote on your behalf (yet).
Sincerely,
Dustin Dauncey
Support Engineer, Global Customer Success
Email: API-Support@ca.com
Phone: +1 800 225 5224
Outside of North America - ca.com/us/worldwide.aspx
CA API Management Community: ca.com/talkapi