Hello student ,
You have not mentioned which region you belong to. But, With a score of 280 in the St category, it becomes difficult to procure a seat in the government medical colleges when comparing the results of previous years. The various cut off's are
AU quota 378
SVU quota  395
OU quota  421
For government dental colleges, a minimum score of 370 was required to fetch one a seat there. Also, one thing to keep in mind is that scores and ranks vary each year with difficulty level of the question paper and availability of seats, by which nothing can be predicted for sure. However you can go through the following link to know about the cut off's and ranks for the previous years and calculate your chances of selection
https://medicine.careers360.com/articles/neet-cutoff-ap
Good luck

National Eligibility cum Entrance Test

Eligibility | Application | Result | Cutoff | College Predictor | Counselling | Answer Key | Accepting Colleges

Get Updates Brochure