Why do I see two services with same name? My free avast version is 2015.10.2.2214. See task manager screenshot attached.

As has been explained in other threads, this is by design.

Two avastUI.exe entries in Task Manager - Comment from avast team member.

Thank you very much for the explanation. I must have not searched properly. Can an admin close this thread please.

You’re welcome.
There is rather a lot of data on the forums, getting the right search term can be difficult.

Threads, generally remain open. Over time they drop down the chronological order out of sight.