But the rise of an insurgency in Punjab would jeopardise India's security. In Assam, there were many incidents of communal violence between native villagers and refugees from Bangladesh, as well as settlers from other parts of India. When Indian forces, undertaking Operation Blue Star, raided the hideout of self-rule pressing Khalistan militants in the Golden Temple — Sikhs’ most holy shrine — in Amritsar, the inadvertent deaths of civilians and damage to the temple building inflamed tensions in the Sikh community across India. The Government used intensive police operations to crush militant operations, but it resulted in many claims of abuse of civil liberties. Northeast India was paralysed owing to the ULFA's clash with Government forces.