Detailed Explanation:

Answer: Option 1 — The civilian nuclear reactors come under IAEA safeguards.

The Additional Protocol is a legal instrument that grants the International Atomic Energy Agency (IAEA) enhanced access to information and locations to verify that nuclear materials are used exclusively for peaceful purposes. By ratifying the Additional Protocol, India committed to placing its civilian nuclear facilities under IAEA safeguards, allowing verification that nuclear material in these facilities is not diverted for military use.

✅ Option 1 – Correct: Ratification of the Additional Protocol brings civilian nuclear reactors under IAEA safeguards, ensuring international verification of peaceful use of nuclear materials.
❌ Option 2 – Incorrect: India maintains a clear separation between civilian and military nuclear programs; military installations remain outside IAEA inspection scope.
❌ Option 3 – Incorrect: While the Additional Protocol was part of India's integration into the global nuclear order post-Indo-US nuclear deal, it does not automatically provide the privilege to buy uranium from NSG; separate bilateral agreements are required.
❌ Option 4 – Incorrect: NSG membership requires a separate consensus-based admission process and is not automatic upon ratifying the Additional Protocol.

📝 Short Notes: IAEA Additional Protocol and India

• IAEA Additional Protocol: Legal document providing the IAEA with expanded rights of access to ensure nuclear non-proliferation and peaceful use of nuclear energy.
• India's Approach: India signed the Additional Protocol in 2009, which entered into force on July 25, 2014.
• Civilian-Military Separation: India follows a separation plan where designated civilian facilities come under IAEA safeguards, while strategic/military facilities remain outside.
• Indo-US Nuclear Deal (2008): Enabled India to access civilian nuclear technology and fuel despite not being a signatory to the NPT; the Additional Protocol was part of this framework.
• NSG Waiver (2008): Nuclear Suppliers Group granted India a special waiver allowing nuclear trade; however, India is not yet an NSG member.
• IAEA Safeguards: Apply to declared civilian facilities, ensuring nuclear materials are not diverted for weapons purposes through regular inspections and monitoring.