Explanation:

Only statements 1&3 are correct.

• The President by warrant under his hand and seal appoints, and determines the tenure, service conditions of the Chairperson, Vice-Chairman, and the members of the Commission.

• The National Commission for Scheduled Castes is an Indian constitutional body established with a view to provide safeguards against the exploitation of Scheduled Castes and Anglo Indian communities to promote and protect their social, educational, economic and cultural interests; special provisions were made in the Constitution.

• Article 338 of the Indian constitution deals with the National Commission for Scheduled Castes.

• The National Commission for Scheduled Castes was established in 2004.

• It aims to safeguard the SC people from prejudice and exploitation while also offering facilities to improve the SC community.

• The central and state governments are mandated to consult the Commission on all key policy issues affecting the SCs.

Hence option 3rd is correct.