JAGADEESH, I will list down the top colleges that your son can get under COMEDK. This is based on his rank and previous year cutoffs. You can try for admission in these colleges for CSE branch (decreasing order of preference):- 

• S V U College of Engineering Tirupathi - CSE, ECE
• Vignans Institute of Information Technology - IT, ECE
• Sri Vidya Niketan Engineering College - ECE

But again it depends on the number of students who appeared for the exam and as well as the difficulty of the paper.

For more information, you can refer to :- https://engineering.careers360.com/articles/ap-eamcet-cutoff

Feel free to ask if you have any more queries.

Hope this helps!

All the best!