Difference between PGT and TGT

TGT is an abbreviation for Trained Graduate Teacher. TGTs are permitted to teach classes up to the tenth grade. One must first complete the B. Ed, a two-year professional course to become a Trained Graduate Teacher. Many government and private institutes offer the course full-time. Candidates in the B. Ed program can choose a specialization based on their interests, such as Arts, Science, or Commerce. An entrance examination is used to determine admission. A candidate must have finished their graduation in any of the streams from an Institute or University recognized by the UGC before applying for the entrance examination. Some prestigious institutes, however, School Management System, only permit candidates with at least 50-55% marks at the graduate level to sit for the entrance examination. The minimum age for B. Ed admission is 19 years old, with no upper age limit. 

PGT is an abbreviation for Post Graduate Teacher. The Post Graduate Teacher teaches classes up to and including the 12th grade. The distinction between a TGT and a PGT is that a TGT pursues his or her B. Ed after graduation, whereas a PGT must hold a Post Graduate Degree prior to or after applying for a B. Ed course. With the same B. Ed degree, a graduate candidate is referred to as TGT, while a postgraduate candidate is referred to as PGT.