[Q] Micromax Android One bricked. Unable to even start the phone. Help pls... topic

Recently, I tried to install a custom ROM of Android L (beta), which bricked my device (Canvas A1).

My device Neither boots nor able to go to recovery mode or fastboot.

Pressing power button or Power+Volume Up isn't booting anything.
My bootloader is actually unlocked.

So I tried to flash stock ROM using SP Flashing Tool and it downloaded successsfully.
But still not booting.

Is there any other way to unbrick it rather than going to Micromax Service Center??

Thanks in Advance :)