Can you tell me about the trimester system? Is trimester system good or not? Am I eligible for IAS exam after doing it?

The trimester system divides the academic year into three terms of 14 to 16 weeks each, with attendance required in two trimesters per year, to total 28 to 32 weeks of instruction. The trimester evolved from the semester system in the 1960s and, thus, is compatible with it (i.e. it is simply a semes