Ravi... There have been various other posts on depression on PPRUNE and I suspect the CAA will view it on a case by case basis, and I do not think things after going to get easier after Germanwings.
If you can I would try to resolve matters without medication. I am a bit sceptical about counselling and actually as your GP for CBT (cognitive behavioral therapy). The other things that might help is exercise, cut down or stop drinking, eat a more health diet, have a look at the Holmes and Rahe scale (you can do that online), take up a new hobby.
I think if you can demostate that you have or are resulving matters without medication using some of the above, this will make things easier with the CAA. Also be sure you get your GP on your side and agree an axtion plan with him or her, that way your GP may smooth things with the CAA.