(a) Union of States: This means that India is a federation comprising states and union territories. It emphasizes the unity of the country while recognizing the diversity and autonomy of its states.

(b) Federal State with Unitary Features: India operates as a federal state where power is divided between the central government and individual states. However, there are certain unitary features, such as a strong central authority in matters like defense and national security.

(c) Federal State with Federal Features: This is not a term used to describe the Indian political system. India is often termed as a federal state with unitary features.

(d) Federal State: This term generally implies a political entity where power is shared between a central government and regional entities. India is indeed a federal state where states have their own governments and certain powers, alongside a strong central government.

1. According to Dalton's atomic theory, atoms combine in small whole-number proportions to form compounds.

1. Article 148 of the Constitution of India provides for an independent office of the Comptroller and Auditor General (CAG).

2. The Comptroller and Auditor General of India is an independent authority under the Constitution of India.

3. He audits all financial transactions of the Government of India and State Governments.

1. The human shoulder joint is an example of a ball and socket joint.

2. In this type of joint, a rounded end of one bone fits into a flat or cup-shaped recess of the other bone.

1. Kunchikal Falls in Karnataka forms the Varahi River.

2. It is located in Shimoga district of Karnataka state.

3. Forms other waterfalls of Karnataka state.

- Sharavati River: Jog Falls

- Kaveri River: Shivasamudram Falls

- Godavari River: Maneshree Falls

- Krishna River: Hukka Falls