Hi, Hope you are doing well!

Contact details for reporting MHT CET grievances-

Phone: 022-49150801

Email- https://mhtcet2020.mahaonline.gov.in/Grievancee/Grievance

First of all contact the authorities in the above mentioned contact details.

Although it should not be a problem for you to enter the examination hall if its the administration's printing mistake. But to be on the safer side please contact them and get an official feedback on this before appearing for the exam. Also, ask them if there's anyway they can correct your name in the admit card.