Hello vanshika,

There are top and best government colleges for b.tech:-

•Dr B R Ambedkar National Institute of Technology Jalandhar.

•Delhi Technological University, Delhi

•Indian Institute of Technology Banaras Hindu University Varanasi.

•Indian Institute of Technology Hyderabad.

•Indian Institute of Technology Bhubaneswar.

•Indian Institute of Technology Bombay.

•College of Engineering, Pune.

•Indian Institute of Technology Madras.

•Institute of Chemical Technology, Mumbai.

I hope this helpful for you.

Best wishes!!

GEC , Bhavnagar

GEC , ghandhinagar

IIT 's

NIT's

Delhi technology University

Dr. B.R. Ambedkar national institute of technology

Indian institute of space science technology, Thiruvanthranpuram

College of engineering , Pune