Micromax A100 Hard Reset SOLUTION Done working 100%

Micromax A100 HardReset
Use Vol Up+power key to go to the reset menu.
Use Volume keys to navigate.
Go to factory reset option.
*LONG PRESS* volume up key to select and leave.
confirm Yes by *LONG PRESS* volume up key and leave.
after that select reboot opiton.

factory set done