Which of the following is an apex advisory and non-statutory body?

NITI Aayog is an apex advisory think tank of the government created by executive resolution, making it a non statutory body.

NCTE, the National Council for Teacher Education, is a statutory body set up by an Act of Parliament.

AICTE, the All India Council for Technical Education, is also a statutory body governing technical education.

MCI, the Medical Council of India, was a statutory body regulating medical education before its replacement.

NITI Aayog replaced the Planning Commission in 2015.

It promotes cooperative federalism and policy guidance rather than enforceable regulation.