Madhan Karky is arguably the most popular lyricist in Kolly town today. Each of his numbers have some different words and good meaning. He has been enjoying a golden run ever since his lyrics for Endhiran struck big time.
With Jiiva in particular, Karky has developed sort of a 'karmic' connection. Starting with Ennamo Yedho in Ko, to Asku Laska in Nanban to the recent Vaayamoodi Summa Iruda in Mugamoodi, Karky has continuously delivered chartbusters for movies featuring Jiiva. Though the Asku Laska song doesn't feature Jiiva as such, still Jiiva's contribution to Nanban is well known.
Karky sure has a liking for movies featuring Jiiva, it seems.