As he searched for the song on his phone, Rohan realized that "Un Paarvai" was not easily available on popular music streaming platforms. He tried downloading it from various websites, but the files were either corrupted or of poor quality.

The next day, Rohan visited a local music store and asked if they had the "Alex Pandian" soundtrack. The store owner, a kind old man named Kumar, smiled and said, "Ah, you're a fan of Ilaiyaraaja, I see!" Kumar handed Rohan a CD with the movie's soundtrack, and Rohan eagerly inserted it into his phone.

I'm assuming you're referring to the song "Un Paarvai" from the Tamil movie "Alex Pandian"!