Gate score 496 (category sc) in ec. Mtech in vlsi from any iit?

As per your score and previous year cutoff, the colleges you
get in first round are:-

IIT
Patna      Electrical Engineering        VLSI and Embedded System      

IIT
Indore     Electrical Engineering        VLSI Design and Nano electronics         

IIT
ISM Dhanbad    Electronics Engineering     VLSI Design

To
know more about your chances of getting other colleges check out the
PSU/college predictor link below:

https://engineering.careers360.com/gate-college-predictor