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

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

Indian Institute of Engineering Science and Technology Shibpur District Howrah Department of Metallurgical & Materials Engineering     Surface Engineering

National Institute of Technology Srinagar        Department of Electronics & Communication Engineering          Communication & Information Technology      

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

National Institute of Technology Agartala        Department of Electrical Engineering     Integrated Energy System      

National Institute of Technology Manipur         Department of Electrical Engineering     Power System and Control System

National Institute of Technology Nagaland       Department of Electrical & Electronics Engineering          Power Systems Engineering

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