Yes, if you get admission to a BAMS college and decide to leave after one year to pursue MBBS, you will likely have to pay a bond amount, as most BAMS colleges require students to sign a bond that stipulates a penalty if they leave the course prematurely, especially within the first few years.

Contact your BAMS college administration to confirm the exact terms of the bond,if you can pay that much amount you can go ahead and also you can negotiate amount by giving reason.