Indian secularism, as enshrined in the Constitution, primarily involves the state maintaining a principled distance from all religions, treating all religions equally (sarva dharma sama bhava), and ensuring religious freedom and non-discrimination based on religion. A) Equality incorporated in Article 14: Article 14 guarantees equality before the law and equal protection of laws to all persons, which is fundamental to ensuring citizens of all religions are treated equally by the state. This is a core component of secularism. B) Prohibition against discrimination on ground of religion, caste, etc.: Articles 15 and 16 prohibit the state from discriminating against citizens on grounds including religion. This is essential for a secular state. C) Sentiments of the majority of people towards cow and against its slaughter: While Directive Principle Article 48 suggests the state shall take steps for prohibiting the slaughter of cows, calves, and other milch and draught cattle, this is a policy directive, not a defining principle of constitutional secularism itself. Secularism requires the state to respect and protect the rights of all religious communities equally, not to prioritize the religious sentiments of the majority as a fundamental component of the concept itself. State actions based on such sentiments, especially if they infringe on minority rights or practices, can sometimes conflict with secular principles. D) Not applicable to persons/citizen: This statement is incorrect. Secularism, through fundamental rights like freedom of religion (Articles 25-28) and equality/non-discrimination (Articles 14-16), directly applies to and protects the rights of persons/ citizens in relation to religion and the state.