The Scheduled Tribes (STs) in India are recognized under:

Article 342 of the Constitution
Article 366 of the Constitution
The Scheduled Castes and Scheduled Tribes Act
The Protection of Civil Rights Act

The correct answer is: Article 342 of the Constitution.

Article 342 of the Constitution of India lists the Scheduled Tribes in India. The list is prepared by the President of India on the recommendation of the National Commission for Scheduled Tribes. The Scheduled Tribes are a group of people who are indigenous to India and who have a distinct culture, language, and way of life. They are often marginalized and discriminated against, and the Constitution provides special safeguards for their protection and advancement.

The other options are incorrect. Article 366 of the Constitution defines the term “Scheduled Tribe”. The Scheduled Castes and Scheduled Tribes Act, 1950 provides for the administration and control of the Scheduled Castes and Scheduled Tribes. The Protection of Civil Rights Act, 1955 prohibits discrimination against any citizen on the grounds of religion, race, caste, sex, place of birth, or any of them.