Following a ticket in Zoho Desk keeps you notified of its activity, such as new replies, comments, and status changes, without needing to keep checking it manually.
Once you're following a ticket, its email conversations, comments, status changes, and other updates appear in your Notification Center. To stop following, open the ticket, click More Actions, then Unfollow.
There isn't a native, single list view of every ticket you're currently following, but the My Followed Tickets extension from Zoho Marketplace adds exactly this, listing all your followed tickets with contact name, status, and assignee visible at a glance, and letting you select several tickets to unfollow at once.
Following doesn't send email notifications by default. If you need an email alert whenever a specific contact or account raises a new ticket, the workaround is a Workflow Rule triggered by ticket creation, filtered to the relevant contacts or accounts.