Excellent work, congratulations!

Thanks a lot Z-Man. Awesome. I will test this and let you know. Thanks Again. You made my day!

Yup, see
https://www.opensource-socialnetwork.org/component/view/5320

Thanks a lot Z-Man. Nice of you.

Balamurali, you are right, I forgot that. ;)
That's accomplished by

ossn_register_callback('user', 'created', 'ossn_invite_addfriends');

Thus you can develop a new component which is using the same callback like

ossn_register_callback('user', 'created', 'invited_members_counter');

and your invited_members_counter function with a similar logic in the beginning as ossn_invite_addfriends.

Instead of creating new friend relations, your function needs to create/update a new member attribute (entity record) named like 'invited_members' or alike.
That's for the database part.
Next would be adding some code to display that count on the member's profile, the About page, wherever ...

This also interests me because it would be an excellent development.

Thank You for the reply.

However, when someone uses the link and they join (userB), I believe they automatically become the friend of the invited user (userA). So we don't need to capture the emails but on the registration of the userB when it adds the relationship friend to userA, is there a way to add/track this?

Please let me know. Sorry for asking crazy requirements. Any help would be greatly appreciated.

Thank You.

Currently, none of these e-mail addresses are saved on inviting. And even if you would: It's not guaranteed that the invited user would use the same address on registering.