HI,

As you belong to OC getting free seat is not possible unless you are in OC ( EBC) and also income level should be below 2 lakhs 

colleges you can opt for are:

Yogi Vemana University 

Sri Krishnadevaraya University

RVR and JC College of Engineering

 Sri Vidyaniketan Institute of Management--Tirupathi -

Andhra Loyola Institute of Engineering And Tech Vijayawada , Krishna District.

PB Sidhartha college of arts and science--vijayawad

Rajeev Gandhi Memorial College of Engineering and Technology Nandyal - [RGMCET], Kurnool

Vignans Institute of Information Technology---VISHAKAPATNAM

SRK Institute of Technology, Vijayawada

GOOD LUCK