Dear Priya,

In order to do BDS course you have to appear for the entrance exam of NEET.

To prepare for NEET make sure your NCERT is completed to make your base strong and to clear all your concepts and fundamentals. 

Your syllabus is based on NCERT books only. To give edge to your preparation go through previous year papers to understand the exam pattern and level of questions. Focus on important topics you can solve MCQs related to important topics for your practice. 

You can also solve complete mock test series to understand your strength and weakness. So, you can work upon them. 

Good Luck!!