Hridoy Heena

verse 1:
kede jaae ei mon kede jaae
kete jaae e jeebon kete jaae
chorus:
o hridoy heen kokhono ki tomaar mone pore naa
amaake
verse 2:
koto smriti maakha deen gulo
keno kuwashaae shudhu dheke jaae
nihshongo ekhon ekakideen kete jaae
biroho bethaae
verse 3:
nihshobdo nileemaa te je 
khujechi tomaae eka niralaae
jaani aashbe naa je pheere je
tobuo ashaae boshe thaaki haae
The first two and half minutes...
keys intro:
D#-Gm-G#-A#
verse 1:
D#-Gm-G#-A#
chorus:
Cm7-Gm7-G#maj7-A#
verse 1:
D#-Gm-G#-A#
keys interlude:
D#-Gm-G#-A#
verse 2:
D#-Gm-G#-A#
chorus:
Cm7-Gm7-G#maj7-A#
If the basic chord holdings and theories and known, you should be able to figure them out easily.
But just incase...
D# 668886
Gm 355333
G# 466544
A# 688766
Cm ----335543
Gm7 ---353333
G#maj7 465544
At 2:56 the key shifts from D# to F#...
verse 1:
F#-A#m-B-C#
chorus(different):
D#m7-A#m7-Bmaj7-C#
verse 3:
F#-A#m-B-C#
chorus:
D#m7-A#m7-Bmaj7-C#
Simply get the chords 3 frets up.
At 4:35 the key shifts again from F# to A...
verse 1:
A-C#m-D-E
chorus:
F#m7-C#m7-Dmaj7-E
verse 1:
A-C#m-D-E