Hi Praveen,
You can register for notifications on Maintenance Patches, New Versions & general announcements/alerts at the following link:
https://support.ca.com/us/notifications-page.html
There are usually no notifications for Hotfixes, but you can refer to this page to see a list of Hotfixes:
CA Privileged Access Manager Solutions & Patches - CA Technologies
Regards,
Christian Lutz
Support Engineer
CA Technologies - North America