Among the organizations listed, only the National Commission for Backward Classes (NCBC) is a constitutional body, established under Article 340 of the Indian Constitution. The other bodies—National Human Rights Commission, National Law Commission, and National Consumer Disputes Redressal Commission—are statutory bodies created by acts of Parliament. This distinction is important for the UPSC Prelims as it underlines the difference between constitutional and statutory bodies, highlighting their sources of authority and the framework within which they operate, which is critical for understanding Indian governance and rights frameworks.