Hey dear, cut off varies every year, seeing the last year's cutoff which went very high that even students getting 500 marks were unable to get a seat in govt. Mbbs colleges . Since you asked for deemed university for bds seat under general category with 350, so you can very easily get a seat over there, because in deemed university cutoff id generally less. For more information regarding marks and ranks go through this link:

https://medicine.careers360.com/articles/neet-result-marks-vs-rank

You can also use college predictor through this link:

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer