The strumming of the intro part which is Kaise batayein...till Tu jaane naa is duudd and 
when Atif Aslam sings to dduud listen the song carefully to get the muting effect too.........

     G
Kaise batayein
     Em
Kyun tujhko chahe
    Am           D
Yaara batha na paayein
      G
Baatein dil o ki
    Em
Dekho jo baki
   Am         D
Aake tujhe samjhaein
     G       D
Tu jaane na aaaa..
     G    D
Tu jaane naaa
      G    D
Tu jaane na aaaa..
    G     D
Tu jaane naaa
    G              D
Hmm milke bhi, hum na mile
       Em       D        G
Tumse na jaane kyun, milo ke,
     D          C         D
Hai phasle tumse na jaane kyun
        G
Anjaane, hai silsile
     Em         D         G
Tum se na jaane kyun, sapne hai
   D     C              D
Palko tale tum se na jaane kyunnnnnn…
     G
Kaise batayein
     Em
Kyun tujhko chahe
    Am         D
Yaara batha na paayein
     G
Baatein dil o ki
    Em
Dekho jo baki
     Am      D
Aake tujhe samjhaein
     G       D
Tu jaane na aaaa..
    G     D
Tu jaane naaa
     G      D
Tu jaane na aaaa..
    G     D
Tu jaane naaa
    G
Aaaa aaaaa aaa
     G
Nigahon mein dehko
 D          C
Meri jo hai bas gaya aa
       Em         D
Woh hai milta tumse hubahoo

Ooohhooo..
        G
Jaane teri aankhein
       D       C
Kiya baatein ki vajah…
         Em
Huye tum jo dil ki aarzoo
        G
Tum paas ho ke bhi
       D
Tum aas ho ke bhi
     Em
Ehsaas ho ke bhi
     D       G
Apne nahin aise hai
     D
Hum ko gile
        Em             G
Tumse na jaane kyun, milo ke
     D           C          D
Hai phasle tumse na jaane kyun ooonnn….
      G      D
Tu jaane na aaaa..
      G   D
Tu jaane naaa
      G     D
Tu jaane na aaaa..
      G   D
Tu jaane naaa

          G         D
Ooo jaane na jaane na jaane na
    C             D
Aaaaaaa aaa… tu jaane na
           G
Khayalon mein lakhon baatein,
   D       C
Yun toh keh gayaaaa..
   D          Em
Bola kuch na tere saamne
            G
Oooo… huye na begaane bhi
       C
Tum hoke aur ke
     D          Em
Dekho tum na mere hi bane
     Em              D             G
Aafsos hota hai, dil bhi yeh rotha hai
       C             D           G
Sapne sanjotha hai, pagla hua soche ye
     G       D       Em
Hum the mile tum se na jaane kyun
  G          D          C           D
Milo ke, hai phasle tumse na jaane kyun
      G         D
Anjaane, hai silsile
     Em          D       G
Tum se na jaane kyun, sapne hai
    D      C              D
Palko tale tum se na jaane kyunnnnnn…

Hooooohh…
     G
Kaise batayein
     Em
Kyun tujhko chahe
   Am             D
Yaara batha na paayein
        G
Baatein dil o ki
    Em
Dekho jo baki
    Am        D
Aake tujhe samjhaein
       G     D
Tu jaane na aaaa..
      G   D
Tu jaane naaa
      G    D
Tu jaane na aaaa..
      G   D
Tu jaane naaa

         G   D      G     D
Tu jaane naaaa....tu jaane naaa.......

Hope this helps..........
Correct me if i am wrong ..........