1st go to MTK Tab select default Built-in Boot _ Auto
2nd click on one key root
3rd untick Auto Detect Pinout
4th select usb mode .
5th select ADB_Root
6th power on ur phone after on screen u will see enter gmail id & pass
Click on Run
connect your phone with pc ...
after that u see connecttion phone
phone connection is successfull
Root process may restart the phone several times, keep your phone and data lines connected correctly.
Getting Root privileges, please wait...
Phone Model: Micromax A67
Android Release: 4.0.3
wait for the full process it may takes maximum 5 to 7 mins just wait aftr root success phone is reboot thn again
after root just change the option
now select Reset_Gmail
here is snapshot
Volcano world's No 1 Box in GSM History