Hi catherine,
There is no upper limits in the number of attempts a person could take for the CTET but yes they do impose validity period for CTET certificate which is seven years from the date of their issuence. So no need arises for you to appear again as your certificate is valid till 2022.
Application | Admit Card | Preparation Tips | Result | Answer Key | Eligibility | Dates
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile