gate score in ec is 519 can i get mtech vlsi in any of iits ?

You will get IITs with different branches but not in VLSI.

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

National Institute of Technology Hamirpur Department of Electronics & Communication Engineering VLSI Design Automation & Techniques

Punjab Engineering College Chandigarh Department of Electronics & Communication Engineering VLSI Design

National Institute of Technology Uttarakhand Department of Electronics & Communication Engineering Microelectronics & VLSI Design

Atal Bihari Vajpayee Indian Institute of Information Technology & Management Gwalior Department of Computer Science & Engineering VLSI & Embedded Systems

National Institute of Technology Sikkim Department of Electronics & Communication Engineering Microelectronics & VLSI Design

National Institute of Technology Meghalaya Department of Electronics & Communication Engineering VLSI & Embedded Systems

National Institute of Technology Manipur Department of Electronics & Communication Engineering VLSI Design & Embedded Systems

National Institute of Technology Nagaland Department of Electronics & Communication Engineering VLSI Systems

National Institute of Technology Arunachal Pradesh Department of Electronics & Communication Engineering VLSI Design & Embedded Systems

National Institute of Technology Mizoram Department of Electronics & Communication Engineering Microelectronics and VLSI System 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