Hii,i am here to help you according to your query.As you mention your rank 20944 and you belong to OC-general(M) category, it will be very difficult to get into Sri Venkateswara University but you can get a seat in Andhra University. If you want more choices according to your rank here are some of the other reputed colleges you can consider -

1) Andhra University - [AU], Visakhapatnam

2) Velagapudi Ramakrishna Siddhartha Engineering College - [VRSEC], Vijayawada

3) Dr Lankapalli Bullayya College, Visakhapatnam

4) Annamacharya Institute of Technology And Science - [AITS], Kadapa

5) Lakireddy Bali Reddy College of Engineering - [LBRCE], Krishna