Police, a key law and order institution suffer most from corruption. Nearly two in five people in the region mentioned the police were mostly or entirely  corrupt (39%) according to the report. India was ranked 81st among 180 countries in Corruption Perception Index (CPI) 2017 released by NGO Transparency International. India has dropped by two ranks from 79th slot in CPI 2016. It scored 40 on the scale CPI ranks countries on a scale of zero (highly corrupt) to 100 (very clean) based on their perceived levels of corruption in the public sector. The index is compiled by using data of World Bank, World Economic Forum (WEF) and other institutions