As far as I know, there is no special treatment for an RGUKTian in EAMCET. I am listing the past years cutoff ranks at JNUTU Anantpur. You should get an idea of what ranks you need. Please check the branch as the closing ranks vary for each barcnh and yes I am listing for Gen category since I dont know which category you are belonging to.

Chemical Engineering 11598

Civil Engineering 5281

Computer Science Engineering 3753

Electrical and Electronics Engineering 3760

Electronics and Communication Engineering 3230

Mechanical Engineering 4377

Can you please specify the course and entrance exam that you are talking about? We could then write back with the correct information