Incidents of arson and vandalism broke out across West Bengal (an eastern Indian state) on 4 May 2026 as BJP supporters celebrated a sweeping election win, with the ruling Trinamool Congress alleging widespread attacks on its party offices. Police confirmed that TMC offices in several locations — including Tollygunge, Kasba, Baruipur, Kamarhati, and Baranagar in and around Kolkata, as well as in Howrah and Baharampur — were attacked by mobs. The violence signals a tense political transition in a state long governed by the TMC under Chief Minister Mamata Banerjee.