Sooraj Hooa Madhaam (Kabhi Kushni Kabhi Gam) guitar chords and lyrics

I am not sure about the Dm Chord in the following song.
Corrections are welcome

Initial music with some instrument I don't konw :
Gm... F...
Gm... F...
Gm... F...

then with chorous the same thing,
and finally slow strum with voilen as :
Gm...F...Dm...Gm

Gm             F       Gm           F
Sooraj hooa madhaam, Chaand jalnea laga,

Gm           F     Gm             F
Aasman yeah hai,kayoon pighalne laga

and the beats start...

same 2 lines as above.

Gm                          F     Gm
Main dhera raha Jameein chalnea lagee

Gm          F          Gm
Dhadka yea dil sans thamne lagee.

F                             Gm    
Kaya yeah merea pahela pahela payaar hai

F                                     Gm
Sajnaa....kaya ye merea pahela pahela payaar hai

female voice :
Gm    F    Dm   Gm      F       Gm
Oh...oh....Oh...oh.....oh.......oh.....

same thing in female voice...

same thing is female voice.

and the song loops.......