Place the recovey.img anywhere in sdcard
1) Root your Device if not rooted. open framaroot and try all three exploits, most of the time the third one will work
2) After restarting your device your phone will be rooted. Open mtk mobile uncle tools (Grant root access to the app) in that go to Recovery update… It will search the sdcard for recovery. Select the cwm recovery which you downloaded ( if you have trouble finding it then match the right filesize)
3) Once done, cwm is installed.. Switch off your phone.. to open or go to recovery mode press and hold VOLUME_UP+POWER_BUTTON once you see gionee logo release power_button but not volume_up button.
* Use volume_up and volume_down to move, power to select