Cut offs change every year. Cut offs depend on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. And the cut offs also depend on the availability of seats against your Category. If the no.of seats available are higher, then the cut offs will be lower and vice versa. So here are the previous years cut offs for both AIQ and State Quota for SC Categories:

All India Quota:

AP: 421

Karnataka: 465

Tamilnadu: 463

State Quota:

AP: 403

Karnataka: 323

Tamilnadu: 321

This is previous years data and so for this year you might have to target atleast 50-75 marks more than those mentioned here.