This is a bangla bengali song composed by Rabindranath Tagore. His
songs are known as rabindra sangeet. Tagore won Nobel Prize for literature in 1913. He died in 1941.
Ranga matir ronge chokh juralo is orginally sung by Niaz Mohammad Chowdhury of Bangladesh. Singer Shahjahan Kamal has recorded it in Toronto for FOBANA Conference.
Surjo shurjo dobaar dobar pala palaa is a old adhunik modern bangla or bengali song. The original singer was late Hemanta Mukherjee. He was very renowned from 50's until his death.