O Kalo Megh Boltey Paro song is a Bengali modern song from the SD. Burman - Rare Bangla Songs (Vol 1) released on . Music of O Kalo Megh Boltey Paro song is composed by SD. Burman. O Kalo Megh Boltey Paro was sung by SD. Burman. Download O Kalo Megh Boltey Paro song from SD. Burman - Rare Bangla Songs (Vol 1) on Raaga.com.