Enable navigation bar in micromax canvas spark!!!!!!!

Hi friends,if u want to ENABLE NAVIGATION bar on your MICROMAX CANVAS SPARK then follow these steps:
1. First download es file explorer or some other root exlorer from play store and then install it.
2.Then open es file explorer.
3.Grant root permission to it.
4.Then select device.
5.Search build.prop.
6.Open it as es note editor.
7.Select the edit button on top and paste this code at the end:
qemu.hw.mainkeys=0
8.Save the build.prop file.
9.Reboot and enjoy!!!!!
IF U LIKE THIS THEN PRESS A THANKS FOR ME!!!!!