Kakatiya University — I'm complaining about results which I got in the last two semesters

Hello, I'm a MBA student and I have recieved my results recently and I have realised that something mistake is there from your end. Please clear my doubt.

According to the Kakatiya University the results points is as divided as 10-O, 9-A, 8-B... So in the last two semesters I got only grades of As and Bs in all the subjects but my total GPA was 7.01 in the 1st semester and 6.83 In the 2nd semester, how to is possible according to your guidelines I got all 9 and 8 points in all the subjects so my total GPA should be in 8 points but why i have received 7 and 6.8 points as GPA. It's totally unfair how one can change the marks of a student its life issue.

Please clear my doubt.