All teaching courses in India should be specially recognized by ____________ to be valid in india for teaching.

The correct option is NCTE.

To understand why this is the correct answer, let's break down the roles of the different educational bodies in India:
1. NCTE (National Council for Teacher Education): Established as a statutory body under the National Council for Teacher Education Act, 1993, the NCTE is specifically mandated to oversee, regulate, and maintain standards in the teacher education system across India. Any teacher training qualification, such as B.Ed. (Bachelor of Education) or D.El.Ed. (Diploma in Elementary Education), must be recognized by the NCTE to be valid for teaching appointments in schools.
2. U.G.C. (University Grants Commission): The UGC is responsible for coordinating, determining, and maintaining standards of higher education in universities and colleges across India, rather than focusing specifically on school teacher training regulations.
3. N.T.A. (National Testing Agency): The NTA is an autonomous testing organization responsible for conducting national-level entrance examinations (such as JEE Main, NEET, and UGC NET) for admissions and fellowships.
4. C.B.S.E (Central Board of Secondary Education): The CBSE is a national school education board that prescribes syllabus, conducts board examinations, and affiliates schools, but does not govern the recognition of professional teacher training degrees.

Thus, it is the National Council for Teacher Education (NCTE) that must recognize all teaching courses to make them valid for teaching professions in India.