COMEDK

Based on your JEE marks and class 12th percentage you can get a seat in a good NIT and based on your COMEDK rank you can opt for mechanical or civil branch in good colleges and if you are planning for CS, EEE or ECE you can try for colleges like RNSIT, Dayanand Sagar College or Dr. Ambedkar Institute of Technology.

Score around 115 is better, but if your rank is around 2000 you can get the admission.

Hello
Please visit the link for complete detail about college by your rank and category:
https://www.shiksha.com/b-tech/resources/comedk-college-predictor

Cutoff rank is between 15,000 - 20,000 for COMEDK.

If you belong to general category then 400-500 is ideal.

Please choose a branch of your interest. Then, we can help you to decide for college.

Here I give you the name of some top college in Karnataka for mechanical engineering who got the admission through COMEDK:
RV College of Engineering, Ramaiah Institute of Technology, PES Uniersity-Bangalore, BMS College of Engineering, The National Institute of Engineering and Shri Sai Ram College of Engineering.