The Full Form of TGPA is The Grade Point Average.

A grade point average is a number representing the average value of the accumulated final grades earned in courses over time. More commonly called a GPA, a student’s grade point average is calculated by adding up all accumulated final grades and dividing that figure by the number of grades awarded. This calculation results in a mathematical mean—or average—of all final grades. The most common form of GPA is based on a 0 to 4.0 scale (A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0), with a 4.0 representing a “perfect” GPA—or a student having earned straight As in every course. Schools may also assign partial points for “plus” or “minus” letter grades, such as a 3.7 for an A–, a 3.3 for a B+, and so on. GPAs may be calculated at the end of a course, semester, or grade level, and a “cumulative GPA” represents an average of all final grades individual students earned from the time they first enrolled in a school to the completion of their education.