hey 

you might not get govt seat in AU region in andhra pradesh with 390 marks and belonging to SC category. as per previous year the minimum cut off was above 400 marks. we are not sure about this year cut off as it changes every year depending on no.of candidates, no.of seats and difficlty of exam. so hope for good result. 

here is a link with all medical colleges of AP and their previous year cut off. i hope this might help you https://medicine.careers360.com/articles/neet-cutoff-ap 

goodluck