Hello Aspirant,

Hope you are doing well, As you've mentioned that your ranking in  eapcet 2021 is 20851, with this rank your chances of getting cse branch seat in top engineering colleges are low, Wait & try for all rounds. Here are the colleges where you have good chances of getting cse seat through eapcet:

Pragati Engineering College, Surampalem

G Pullaiah College of Engineering and Technology, Kurnool

Lakireddy Bali Reddy College of Engineering, Mylavaram

Sri Venkateswara College of Engineering and Technology, Chittoor

Gayatri Vidya Parishad College for Degree and PG Courses, School of Engineering, Visakhapatnam

ANU College of Engineering and Technology, Guntur

Raghu Engineering College, Visakhapatnam

Chaitanya Bharathi Institute of Technology, Cuddapah

Vignan's Lara Institute of Technology and Science, Guntur

You can also predict your engineering/pharmacy college for ap eamcet 2021 by using college predictor tool:

All the best!

Hope this helps you