To learn Silajit - Sudeshna chords, your practice should emphasize these chord progressions: C#m, C#, B, C#, F#, A, E, C#m, C#, Am and C#. I suggest starting at a calm pace of 45 BPM, and as you gain confidence, approach the song's BPM of 91. For a balanced pitch, adjust the capo with respect to your voice and the song's key: C# Minor.