root your android mobile

its very easy
1) download update.zip
this link

(dont put any folder for ubdate.zip just save sd card)

2) then shut down your phone

3) now prees
power button + home button + volume up button same time
hold 10 seconds
4) now you enter recovery mode
5) u see option
apply updates from sdcard

6) use keys volume key up and down,
for select home button

7) now select update.zip

8) wait few seconds
you see message
your phone successfully rooted

9) restart your phone see superuser app in menu.. 

(its working tested for me)

any doubt cotact me
vivekrocz@gmail.com