The discontinuing bond is decided by the college in which you are taking admission. If you discontinue your study or don't do your compulsory internship, then you need to pay the bond amount.

Some of the top BDS colleges in India are provided below:

IMS BHU - Institute of Medical Sciences Banaras Hindu University

Shree Guru Gobind Singh Tricentenary University, Gurgaon

KGMU Lucknow - King George's Medical University

KIMS Karad - Krishna Institute of Medical Sciences

GDCH Ahmedabad - Government Dental College and Hospital

ACDS Secunderabad - Army College of Dental Sciences

For more colleges visit the link below:

https://medicine.careers360.com/colleges/list-of-bds-colleges-in-india#:~:text=Maulana%20Azad%20Institute%20of%20Dental,India%20as%20per%20NIRF%20ranking.

To know more about BDS as a career, visit the link below:

https://www.careers360.com/courses/bds-bachelor-of-dental-surgery

I hope this answer helps. All the very best for your future endeavors!