Hi aspirant,
As per previous year's cutoff for admission for BDS at Faculty of Dental Sciences at KGMU Lucknow, which is a government dental college, the cutoff was 525 marks. So it is difficult to say whether you will or will not be able to get admission there. However, you have good chances of admission at private dental as well as medical colleges for your NEET score.
To find out more about your chances of admission, check out NEET College Predictor 2020 here:
https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile