Hello Namitha

As per your query about the marks required for BDS, I would like to inform you that it will vary every year based on the difficulty level of ques paper and number of students scoring that mark

It also depends on college you targeting like govt or private... Through STATE QUOTA 85%  Or ALL INDIA QUOTA 15 %.....

BUT going by previous years trend for government college 450-550 will be a safer score.. If you target private it will around 400-500 

Hello!

A score of 400+ would help you get into a reputed detal college, and 450+ would be considered as a safezone. You can also use the NEET BDS calculator by Careers360 which will help you get a list of colleges which would accept your score.

https://medicine.careers360.com/articles/mbbs-bds-seats-in-india-through-neet Here's more about BDS and here's a link for the college predictor:

https://medicine.careers360.com/articles/neet-college-predictor

Good luck!