Personal loan was 1.5 lacs but in return total amount we will have to pay is 3.02 lacs

Location/place: vadodara

Name of company/service: Fullerton india ltd.

Company is saying that the amopunt which we have to pay in a tenure of 2.5 to 3 years is 3.02 lacs which is the double the amount of loan taken which is beyond my understanding so kindly help in this matter