Unhappy [Q] Micromax A92 Canvas Lite Keeps on connecting And Disconnecting with USB

Mine micromax A92 Canvas Lite is not rebooting and is stuck on the boot animation of canvas.
I have tried to recover it by pressing volume up + volume down + power button but to no use.So i read somewhere to flash cwm recovery onto it.So for doing so i connected it to my pc and installed the driver.But whenever i connect it via usb it disconnects automatically and shows device is not connected.
Please Help!!!!!!!
Cannot figure out even a single answer on the internet.