Listen to Hallo Yendhan online. Hallo Yendhan is a Tamil language song and is sung by Karthik Raja, Sadhana Sargam and Udit Narayan. Hallo Yendhan, from the album Hits Of Karthik Raja, was released in the year 1997. The duration of the song is 5:34. Download Tamil songs online from JioSaavn.