Explanation:

- The SDG India Index, crafted by NITI Aayog, is a composite score for India's states to track progress on the United Nations Sustainable Development Goals (SDGs).

- Option 1: Zero hunger is included in the SDG framework as SDG 2, aiming to end hunger and improve nutrition.

- Option 2: Reduced unemployment is not a standalone goal. Employment aspects are part of SDG 8, which focuses on decent work and economic growth.

- Option 3: Life below water corresponds to SDG 14, focusing on conserving oceans, seas, and marine resources.

- Option 4: Responsible consumption and production aligns with SDG 12, promoting sustainability in consumption and production patterns.

- Correct Answer: Option 2 - Reduced unemployment