I have been listening POP songs for a while but never cared much about the lyrics. For the last couple of days I am digging into it. What I observed is most of the songs (I won't say 100% but not less than 90%) have the key words like:

Kanchhi, nakali, chautari, dadapari,dadawari, lekali,  mayalu, bhanjyang, Khola and many more.

I suppose it is is easy to establish rhymes with these key words.