No you can't

https://www.google.com/amp/s/engineering.careers360.com/articles/tancet-application-form/amp

HII ROMARIO K

Yes, you can apply. Candidates, those who want to pass the TANCET 2019 exam have to appear in the counselling process to get admission into Anna University, Government, private and Self-financing Colleges in Tamil Nadu. The counselling procedure will take place after the declaration of the result. It will be started from July 2019 for the courses.

all the best