Ishq Shava Meaning

It seems the lines Ishq Shava, Mushq Shava, Khushamadeed-e-Marahaba are a mix of Urdu and Persian.

Going by that, Shavaa would mean a cure, a recovery, and so the lines Ishq Shavaa, Mushq Shavaa, Khushamadeed-e-Marhaba would mean 'Love is there, fragrance is there, Welcome (them), welcome (them)'.

Basically the meaning here is that contrary to the proverb 'Ishq aur mushq chhupaye nahi chhupte', which means Love and Fragrance cannot be hidden, the poet here says that we should welcome, enjoy and rejoice love and fragrances, say, instead of even trying to hide them.

Thanks to the Anonymous commenter below for some light on the word Shava here.

You can check the complete Lyrics for the song translated HERE and for all Lyrics-Meanings-Translations from Jab Tak Hai Jaan, check THIS PAGE.