Hello aspirant!
Answering your question-
Andhra Pradesh Medical seats are categorised into 3 areas that is  SVU,AU,OU areas. Candidates are given local benefits depending on the locale they belong to. You haven't mentioned the area you are locale to. Neverthless, under State Quota in 2018, under OC, the cut offs for various Categories have been as follows:
SVU: 517
AU: 533
OU: 526
As you have scored 517 marks this year so you have high chances to get a government medical college. Having said that, cut offs change every year and are dependant on various factors like no.of seats available, no.of candidates appearing for the exam, top NEET score and difficulty of the exam. You can also check the cut offs of various different colleges under your category
For more information follow up the link mentioned below- at:https://medicine.careers360.com/articles/neet-cutoff-ap/ampk

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