To learn Anuradha - Nirmolo Koro Mangal Kore chords, anchor your practice on these foundational sequence of chords - D, F#m, E, F#m, C#m and F#m. I suggest starting at a calm pace of 80 BPM, and as you gain confidence, approach the song's BPM of 162. Adapt the capo setting considering your vocal range, with reference to the key: F# Minor.
