Yes of course you can. But you have to face some issues.
- As you are studying BDS and want to give NEET again you have to Manage both studies because you can’t afford to ignore your academic as if in case you failed to achieve your target in NEET you have to continue BDS only.
- If crack NEET and have take admission in new college according to the allocated one in cap rounds you need to give your original documents which are surely submitted in your BDS college. To take those documents back you have to cancel your admission which may take some time so be ready for that begor time.
- University won’t let you leave BDS college from midway of the course unless you give fees for your remaining years in BDS. The fees will be applicable of OPEN catagory even if you are not OPEN catagory. Ones you submit remaining fees you could leave and your original documents will be returned to you.
Managing both NEET and BDS study will be the primary issue till your NEET exam. After exam and the cap round you will face the above issues.
You can manage bot studies with good time managements. Of every medical student studies fews days vefore the exam so that won’t be a problem.