India is a republic because the head of the state, the President, is elected by an electoral college for a fixed term of five years. This democratic process ensures that the highest office in the country is not hereditary but held through periodic elections, reflecting the nation's commitment to representative governance and equality.

Governments are classified as unitary or federal based on the distribution of power between the central and regional authorities. In a unitary system, all power is concentrated in the central government. In federal systems, power is shared between central and regional governments, each having distinct spheres of authority.

The Supreme Court's decision to remove personal details of individuals involved in matrimonial litigation is related to the concept of "Right to be forgotten," which is a part of the right to privacy. This right allows individuals to request the removal of their personal information from online platforms and other records if that information is outdated or no longer relevant, preserving their privacy and dignity.

Article 226 of the Indian Constitution empowers High Courts in India to issue writs, including habeas corpus, mandamus, prohibition, quo warranto, and certiorari, for the enforcement of the fundamental rights of the citizens as well as for any other purpose. This article grants the High Courts the power to protect and enforce fundamental rights in their respective states.

 Article 15 of the Indian Constitution deals with the prohibition of discrimination against any citizen on grounds of religion, race, caste, sex or place of birth. It states that the State shall not discriminate against any citizen on grounds only of religion, race, caste, sex, or place of birth.

The state legislative assembly in India has a strength of 60 to 500 members, with exceptions for smaller states. The number of members varies from state to state based on their population.

The feature of Fundamental Rights in the Indian Constitution is borrowed from the Constitution of the United States of America. The Fundamental Rights in the Indian Constitution, as outlined in Part III (Article 12 to 35), are similar to the Bill of Rights in the U.S. Constitution.

As of my last update in September 2021, there are 11 fundamental duties of Indian citizens mentioned in the Indian Constitution. These duties were added by the 42nd Amendment Act in 1976. However, it's important to verify with up-to-date legal sources because constitutional amendments can occur, potentially changing the number or content of these duties after my last update.