• The Sustainable Development Goals (SDG) India Index was launched by NITI Aayog in 2018 to track India's progress on achieving the United Nations Sustainable Development Goals (SDGs).
• The baseline year for the index is 2018, which serves as the starting point for measuring progress and identifying gaps in the implementation of SDGs across different states and union territories in India.
• The index assesses the performance of states and union territories on various SDGs, providing a composite score that reflects their overall performance in terms of sustainable development.