Dear,

The top civil engg colleges according to me in karnataka are:

1.National Institute of Technology Karnataka Surathkal

2.RV College of Engineering, Bangalore

3.Manipal Institute of Technology, Manipal

4.Ramaiah Institute of technology.

5.Indian Institute of Science, Bangalore

6.BMS College of Engineering, bangalore.

7.Christ University, Bangalore

You can visit the following site for more information regarding above colleges:

https://engineering.careers360.com/colleges/list-of-civil-engineering-colleges-in-karnataka

Hope this helps!

• NIT Surathkal (NITK) - National Institute of Technology, Mangalore 
•  Manipal Institute of Technology, Manipal
• Ramaiah Institute of Technology, Bangalore 
• NIE Mysore - National Institute of Engineering, Mysore
• Indian Institute of Science, Bangalore
• Bangalore Institute of Technology, Bangalore
• REVA University, Bangalore
• University Visvesvarya College of Engineering, Bangalore