Exclamation Windows 8.1 USB Driver does not Work for Lava iris 501 While Flashing

I am using Note 3 Custom ROM in my LAVA iris 501 and want to get back to Stock ROM. I tried using SP Flash tool but I am using Windows 8.1 and I guess that's the reason my phone did not get recognised and had to remove my phone. I checked device manager there I saw flashing USB driver. Can you guys tell me where to get usb driver for my LAVA IRIS 501 for Windows 8.1.

Please reply, this note 3 rom gets my phone hot just like lava...