@Micromax A67 Finally tested with out losing data solution with Volcano

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 connection phone

phone connection is successful

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 after root success phone is reboot

after root just change the option

now select Reset_Gmail

and run.

Done Enjoy with out losing data...................