Hello Pavan !

From previous years stats , the expected range of cut off marks and ranks for getting admissions in B category college are :

Marks : 120 - 150

Ranks : 100-1000

The B category colleges are :

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

Hope it helps !