Hello,

No, you don't have to pay for all the four year as you haven't  as you haven't taken any of their resources for the rest of the time. And if you drop it in the given you even might get  a return payment not full but some of the last paid .

thankyou

If you leave a course before its completion, you will have to pay the fees for the remaining duration of your B.Tech course. This is done because the seat is vacant now, and can not be filled by any measure. So in order to not let that seat go waste, universities demand full fees before you drop out of a college.