According to me yes OBC candidates can also apply for Central Teacher Eligibility Test (CTET) and here I will gather information of exam.

Syllabus
Paper 1 (Primary Stage):-
Child Development and Pedagogy
Language I.
Language II
Mathematics
Environmental Studies

Paper II (Elementary Stage): -
Child Development and Pedagogy
Language I.
Language II
1. Mathematics and Science
2. Pedagogical issues
Social Studies/Social Sciences

Application fee
Category Only Paper I or II Both Paper I or II
General/OBC Rs 600/- Rs 1000/-
SC/ST/PH Rs 300/- Rs 500/-

Exam pattern

Number of Papers: Two (Paper I & Paper II)

Paper I is conducted for aspirants having the desire to become the teacher for class I to V.

Paper II is organized for aspirants having desire to become the teacher for class VI to VIII.

Aspirants interested for both are required to appear for both papers.

Paper 1 Structure
Subject Number of Questions Marks
Language I (compulsory) 30 MCQs 30 Marks
Language II (compulsory) 30 MCQs 30 Marks
Child Development and Pedagogy 30 MCQs 30 Marks
Environmental Studies 30 MCQs 30 Marks
Mathematics 30 MCQs 30 Marks

Paper II Structure
Subject Number of Questions Marks
Language I (compulsory) 30 MCQs 30 Marks
Language II (compulsory) 30 MCQs 30 Marks
Child Development and Pedagogy (compulsory) 30 MCQs 30 Marks
Social Studies/Social Science 60 MCQs 60 Marks
Mathematics and Science 60 MCQs 60 Marks

Language mode of the question paper: English and Hindi

Minimum Qualifying marks: 60% or more

Validity of CTET score: Seven years counted from publication of result