Explanation: In the Mandal case judgement (1992), the Supreme Court directed the central government to constitute a permanent statutory body to examine the complaints of under inclusion, over inclusion or non-inclusion of any class of citizens in the list of backward classes.

• Accordingly, the National Commission for Backward Classes (NCBC) was set up in 1993.
• Later, the 102nd Amendment Act of 2018 conferred a constitutional status on the Commission.
• For this purpose, the amendment inserted a new Article 338-B in the constitution.
• Hence, the Commission ceased to be a statutory body and became a constitutional body

Source: Laxmikanth