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

National Institute of Technology Durgapur       Department of Chemical Engineering     Chemical Engineering 

National Institute of Technology Hamirpur       Department of Chemical Engineering     Chemical Technology (Chemical Dept.)      

Sant Longowal Institute of Engineering and Technology       Department of Chemical Engineering          Chemical Engineering       

National Institute of Technology Kurukshetra  

National Institute of Technology Srinagar        Department of Chemical Engineering     Chemical 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