how to append multiple webservices URLs to single variable in .vm file

[Bhagavan Goud]

how to append multiple web services URLs(local, test, and production) to a single variable in the .vm file

[Nic Brough -Adaptavist-]

I don't think you've given us any context to work with here.  Could you explain what you're trying to achieve, and where you're using it?

The answer to the question as it reads though is just

#set ( $a = "http://local" + "http://test" + "http://production")

I very much doubt that's what you're looking for, but without knowing what you're trying to do, there's not a lot more we can tell you.