Different ppl do it from different scale.I just gave you from Em

Krisno
Prelude:- Em- D/ Em-D/ Em-D/ Em-A/B
C         Bm7
Krishno Aila Radhar Kunje 
Am      Bm
Phule Paila Bhromora 
Am      Bm           C     CM7
Moyur Beshete Shajon Raadhika || 
Interlude:- Em- D/ Em-D/ Em-D/ Em-Am/Bm
Ontora :-
Em                              Bm      `       C               Csus
Shoya Chondon Fuler Mala, Shokhigone Loiyya Aila 
Am              Bm                      C     CM7th crosS C/Bm/Am/Bm
Krishno Dila Radhar Kole, Bashor Hoilo Ujala 
Am              Bm              C     CM
Bashor Hoilo Ujala Go Bashor Hoilo Ujala 
Am                       Bm      C     CM7
Moyur Beshete Shajon Raadhika ||