hi,

see if you have applied on gate exam and successfully cleared the exam then you are eligible to apply for tanca in both gate based counselling and counselling based on tancet score.  Applicant  should use a valid and functional e-mail id and a valid and functional mobile number for registration in online application. This email id and mobile number must be  active, you must have regular access to these, since  all the communication to the candidates will be sent only to the registered e-mail id and mobile number.

however there is no provision that you can not use tancet registered main id to gate category process.

you may contact with officials regarding this issue,

for clarifications, contact 044 - 2235 8401, 8402 /

tanca2021@annauniv.edu