Asana is a really great task management system, and integration with it from freshservice would be really nice.
You can set up a Freshservice-Asana integration through 'Zapier'.
To do that, go to https://zapier.com/ and sign up (unless you're already using it). Then click on 'Make a Zap'. You can create several if-this-then-that rules between the two apps.
You can use Zapier to integrate Freshservice with other app as well.
Good luck! Let us know if you need further help.
Thanks, I´ll have a look at that:)