(i) List of constitutional measures that have abolished the caste system, discrimination, and upliftment of the weaker section.

• Article 14: The right to equality, all citizens are given equal treatment and equal protection of the law. No state discriminates against any citizen on grounds of religion, caste, race, creed, gender, or place of birth, or any of.
• Article 16: equal opportunities with matters relating to employment and appointment in any office at the state or central levels.
• Article 25 to 28: all persons, belonging to any religious denominations or sections have been given the right to profess, practice, propagate their religion.
• Article 30: all minorities, whether based on religion or language, shall have the right to establish and administer education or institution of their choice.
• Article 39 A: to promote justice, aims at ensuring equal treatment before the law in securing justice.
• Article 46: to protect and promote special care in terms of education and employment to the weaker sections. 
• Apart from these, there are various other measures laid down to uplift the weaker sections.

(ii) Caste system can be made less relevant by creating awareness about the ill effects of the caste system and promotion of inter-caste marriages.

(iii) The Constitution has given more than 20 articles for the upliftment of the underprivileged, with policies on positive discrimination and affirmative action. They have helped in the educational development of scheduled castes, scheduled tribes, and other backward classes. Hence, it is necessary for India.