UGC NET

Yes, you are eligible to apply for UGC NET after the PG Diploma course. UGC NET Eligibility Criteria:
UGC NET Age Limit:
Students should not be more than 31 years of age in order to be eligible for National Test Agency, National Eligibility Test, or Junior Research Fellow. There is no age limit to apply for the post of Assistant Professor. A relaxation of 5 years in age criteria is given to SC/ST (reserved) category students. UGC NET Educational Qualification:
Students should have completed their PG from a University Grants Commission-recognised college or university. A relaxation of 5% in educational qualification is given to SC/ST category students. Students who have cleared SET (State Eligibility Test) before June 1, 2002, are exempted from taking the University Grants Commission-National Eligibility Test exam. For more details, you may visit the Shiksha UGC NET exam page. (https://www.shiksha.com/exams/ugc-net-exam). I hope this will help you.

First and foremost, you need to understand that the vacancies are less in comparison to the number of candidates clearing UGC NET JRF every year. And more vacancies cannot be generated until or unless more institutions are constituted. Therefore, you will have to take it with a pinch of salt that clearing UGC NET JRF does not guarantee a job. It is not that you will sit idle after having a NET/JRF qualification or your hard work will go waste. Just understand that, when the Universities have a plethora of options to choose from then what is it that will make you stand out in the crowd? Nowadays only possessing a qualification does not REAP benefits, you need to possess some internal skills as well.