Khalistan Movement
The 1980s and 1990s' are often called dark days in  Punjab due to widespread violence from both the Punjab Police and the pro-Khalistan militants, as the Police took a heavy-handed approach in dealing with the armed insurgency, while the militants were also involved in large-scale murders. In October 1983, following the murder of several Hindu bus passengers by the militants, an "Emergency rule" was imposed in Punjab, which continued for a decade.