MI Pad bricked after tapping on Superuser CWM/TWRP

I was trying to root my MI Pad but by mistake I tapped on CWM/TWRP in Superuser App. When I try to reboot my MI Pad a backlight comes for 3 seconds and then automatically disappear. I am not able to enter fastboot mod also system doesnot detect my device when connected through a USB cable. Please suggest me some way out. Is my MI Pad dead or can be recovered. I am ok to take it to the service center also even if it cost me some bucks. Please Help!!!
:crying::crying:

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