Hello Santhaiah

With your score, I am sure you can get a seat in BDS in SC category under Management qouta in a private college.

The last rank (AIR) in BDS ( in 1st round of counselling 2018) of few private colleges is enlisted below:-

•  Meenakshi Ammal Dental College and Hospital, Chennai- 753246
• SRM Dental College, Chennai- 723578
• Dr. DY Patil Dental college and hospital, Navi Mumbai- 716680
• Institute of Dental Sciences, Bhuhaneswar- 642381
• Indira Gandhi Dental College and SBV, Pondycherry- 597480

All the ranks are all india ranks.

Cutoffs vary every year, however these data can give you an idea of the latest trends.

I hope this helps.

All the best for the future!!