Ada paavigalaa

Yesterday in my office pantry, I was waiting to get my cup of coffee, when a north Indian guy walked inside. He was gently singing some song that certainly did not sound like Tamil. At first, I couldn't hear it properly. But when he came close enough it sounded very familiar to some famous Tamil song. You know what?

"Illaya Nila" from "PayanangaL mudivadhillai". Ada paavigala, adhayum vittu vekkaama kaapi adichitteengala. Illa avan Tamil andha azhagula irukka??