Hello Parveen,

Please go through the following troubleshooting methods

1. Check your application number properly.: If you have entered a wrong number by chance in the application number correct it.
2. Check whether you are writing the proper captcha
3. Try using a compatible browser: most of the examination websites supported by mozilla firefox and google chrome.
4. If the above method also does not work, try incognito mode of the browser.
5. Still if the problem persists contact the authorities

Contact detail

CENTRAL TEACHER ELIGIBILITY TEST UNIT

PS 1-2, INSTITUTIONAL AREA, I P EXTENSION,

PATPARGANJ,  DELHI-110092

Tele : 011-22240112

Email (s): directorctet@gmail.com , ctetjuly20@gmail.com

Hope that helps you