Dear aspirant hope you are doing well. There are two types of bonds.

• Bond against seat
• Service Bond

Service Bond - A bond is signed by the candidate at the of admission in mbbs Or medical college. It means you have to provide services in rural areas of the state or pay a lum sum amount to the college at the Time of leaving the college. It is approx 10 lakh - 30 lakh.

Hope it's helpful thank you