You cannot change the applicant name in TS EAMCET 2021 online application form. Although there is correction facility you can only change set of details such as personal details, Educational Details and Communication details. The details which you have provided at the time of registration such a the name of the applicant, registered Email ID and phone number cannot be changed. But you can send an email requesting to change your name in the online application form to firstname.lastname@example.org
You need to provide your correct name as per class 10th certificate along with the scanned image of class 10th certificate as proof to get your name corrected in the application form. Do mention your registration ID, date of birth and application number in the email.