hi, the basic eligibility for appearing in ctet exam is minimum of 50 % in graduation .

but if you have other diplomas you can apply

Senior Secondary with at least 50% marks and passed or appearing in final year of 2- year Diploma in Elementary Education 

• Senior Secondary with at least 45% marks and passed or appearing in final year of 2- year Diploma in Elementary Education in accordance with the NCTE (Recognition Norms and Procedure)
• Senior Secondary with at least 50% marks and passed or appearing in final year of 4- year Bachelor of Elementary Education (B.EI.Ed) 
• Senior Secondary with at least 50% marks and passed or appearing in final year of 2- year Diploma in Education (Special Education)