It was a part of 10 days "Boishakhi Mela, 1418" arranged by BISIC.
Babul Sarkar is a regular singer at Bangladesh Betar. He is performing a traditional Radha Romon Song, These songs used to be kind of sad and tragic, as you know Radha was always craving to get in touch with Krishna.
Again, this video has an instrumental at the end. You'll like that performance. Keep going on.