There is much difference between TGT and PGT .

Candidates having graduation degree with B.Ed are eligible to teach in 1–8 .

Candidate thanks having post graduation with B.Ed are eligible to teach from 11–12. ( Lecturer in inter colleges and other government schools)..

After having B.Ed degree you need to qualify CTET ( central teacher eligibility test) to be a teacher in central government as well as state government schools. As CTET validate in kvs , dsssb and other state teaching exams. After CTET you don't worry about your state TET.

There is no need of CTET to be a PGT.

Just Post graduation and B.Ed is sufficient .