Onam Poovukalku song is a Malayalam devotional song from the Sraavanam released on 0. Music of Onam Poovukalku song is composed by Nisari Ummer. Onam Poovukalku was sung by KG. Markose, Usha Raj. Download Onam Poovukalku song from Sraavanam on Raaga.com.