About Corruption Perceptions Index:
- It is the most widely used global corruption ranking in the world.
- The index has been published annually by the non-governmental organisation Transparency International since 1995.
- Methodology Used:
- It is an index which ranks countries “by their perceived levels of public sector corruption, as determined by expert assessments and opinion surveys.”
- It uses a scale of zero to 100, where “zero” is highly corrupt and “100” is very clean.
Key Highlights of Corruption Perceptions Index (CPI) 2025:
- Least Corrupt nations: Denmark, Finland and Singapore.
- Most Corrupt nations: South Sudan, Somalia and Venezuela.
- India’s Performance: Its rank improved from 96 (2024) to 91 (2025).
