Hello student ,
You have not mentioned which category you belong to. With a score of 549 , you can get a seat in the government medical colleges in general category itself when comparing the results of previous years. Last year,  a score of 506 was enough to fetch a seat in Post graduate institute of medical sciences, Rohtak in general category under the state quota. But scores and ranks vary each year with toughness of the exam and availability of seats. However you can predict the colleges which you are likely to get using the given link
http://medicine.careers360.com/neet-college-predictor
Good luck

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