Hello aspirant,

I hope that you are doing absolutely fine.

If you can't able to apply for cet 2021, make sure you are a registered candidate for neet examination. If you are a registered student, you should be able to apply for cet and get verified by it also. Please check the details and credentials, if you are a registered candidate, and try to login again. It might also happen that the servers might get crashed due to very limited traffic on the website and this will also be the reason for you to not able to login in cet.

Further, for more information , you can check the below link :

https://engineering.careers360.com/articles/mht-cet

I hope that this will help.