BT Stands for Balance Transfer of personal loan is an easy concept. Basically in this case you get a personal loan from a bank on a specific interest rate. After repaying back few EMIs you just transfer the rest unpaid loan amount to another bank of your choice that offers you lower interest rate.
Transferring the loan balance does not bring any complication in case of repayment or anything else. The installments will be at its place. The thing that will be different is the amount of money to be paid. Now that you are availing a personal loan that offers you lower interest rates your installments can be changed. It depends on the banks rules of tenure and payment system of the loan.