Interior Cabinet Secretary Kithure Kindiki has been rated the best-performing minister.
In data released by TIFA on Thursday, Kindiki was rated with an overall score of 68 per cent, a mean grade of B.
This is the sixth time in a row, that the man in charge of the country's internal security has been rated as effectively performing his role.
The second highest rank is tied between Prime Cabinet Secretary Musalia Mudavadi and, Youth and Sports Cabinet Secretary Ababu Namwamba.
