CTET stands for Central Teacher Eligibility Test. CBSE conducts CTET exam twice in a year. In accordance with the provisions of sub-section (1) of Section 23 of the RTE Act, the National Council for Teacher Education (NCTE) had vide Notification dated 23 August 2010 and 29 July 2011 laid down the minimum qualifications for a person to be eligible for appointment as a teacher in classes I to VIII. It had been inter alia provided that one of the essential qualifications for a person to be eligible for appointment as a teacher in any of the schools referred to in clause (n) of section 2 of the RTE Act is that he/she should pass the Teacher Eligibility Test (TET) which will be conducted by the appropriate Government in accordance with the Guidelines framed by the NCTE. The examination is tough with qualification rates of 1% to 14% in the exams held so far.
The syllabus for the Central Teacher Eligibility Test (CTET) is available here, you can get it from the link given below.