Dear Atul,
There are three entrance exams NEET, AIIMS and JIPMER to provide admission in BDS colleges in India.
To check the top colleges for BDS you can refer below link
Guru Gobind Singh Indraprastha Universit y, Delhi
Jamia Millia Islamia, New Delhi
Institute of Medical Sciences Banaras Hindu University, Varanasi
King George's Medical University, Lucknow
Savitribai Phule Pune University, Pune
Sharda University, Greater Noida
To check the complete list you can refer below link
https://medicine.careers360.com/colleges/list-of-medicine-colleges-in-India?f%5B0%5D=sm_college_course_level%3AUG&f%5B1%5D=sm_college_degree%3AB.D.S
It is advisable that you should apply for medical colleges first as it has better scope in the future and entrance exams are same.
You can apply for BDS exams after completing your 12th class.
Good Luck!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile