I need to verify if there's an official full version of this song. The original song was a duet between Sridevi and Karthik in the movie, with lyrics by Vaasan. It's a beautiful song, but traditionally, it might not have a full version as some songs are edited. However, many songs are remixed or re-released on YouTube in full. So maybe the user found a full-length version uploaded by Tamilyogi, a channel known for Telugu/Tamil music.