Hello Manjima,
With 186 marks in NEET 2019 I really don't think that you will be able to get a MBBS or BDS seat in any indian medical government college. Although you are from OBC category, but I don't think that you still have a chance to get a seat in any government college in any state across India.
You can refer to the following link for more info
http://www.careers360.com/college-predictor
I hope this helps.

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