Help.. about the GATE and Best Institutes offering VLSI..??

Hello everybuddy,
I am in 6th sem electronics.. I am beginner at VHDL and I like working on it.. I want to be in research field.. I want to do GATE and go in an institute best for vhdl and vlsi.. It will be great help if you can tell me the best institutes for vlsi.. Also which book should I prefer for gate preparetions..??

Regards,
Jimmy_TAg😀