Hello dear student, even though you have qualified NEET examination but its not possible to get admission anywhere with this less marks . I am sorry to tell you that you cannot get government seat while you can try for the private medical colleges under management quota. To get BDS in government  college you need to have atleast 520+ marks with general category only then you can be sure to get a seat . Here i am attatching one link of the cut offs government medical colleges 2019  https://medicine.careers360.com/articles/neet-cut-off

I hope this helps 

Best wishes.