Explanation:

- Option 1: Article 17

- Article 17 of the Indian Constitution abolishes "untouchability" and forbids its practice in any form. It makes the enforcement of any disability arising out of "untouchability" an offense punishable by law.

- Option 2: Article 202

- Article 202 deals with the estimation of expenditure and the auditing of accounts in the states. It does not relate to social issues such as untouchability.

- Option 3: Article 143

- This article allows the President of India to seek the opinion of the Supreme Court on any question of law or fact of public importance. It is unrelated to social justice or untouchability.

- Option 4: Article 27

- Article 27 prohibits the state from compelling any citizen to pay taxes that are directed towards the promotion or maintenance of any particular religion.