New Delhi: Union Home Minister Amit Shah asked West Bengal Governor for a detailed report on law and order in the state, and ordered an investigation into an attack on BJP chief JP Nadda’s convoy in West Bengal on Thursday.

The home ministry called for two reports from the Bengal administration in a matter of 12 hours as the BJP alleged that the state had slipped into complete lawlessness and anarchy. The BJP chief’s convoy came under attack, allegedly from supporters of Bengal’s ruling Trinamool Congress, around 60 km from state capital Kolkata. Nadda was on his way to a meeting of party workers in Diamond Harbour.

Dramatic videos online showed rocks smashing windscreens and windows as cars made their way through a violent crowd. Trinamool supporters thumped the cars and used stones, sticks and rods in their attack, according to the BJP. “If I have reached here for the meeting, it’s due to Ma Durga’s grace,” said Nadda. The BJP has launched protests across the state.

Nadda said he was unhurt because he was travelling in a bullet proof car but other BJP leaders, Kailash Vijayvargiya and Mukul Roy, were injured. Some journalists were pushed and manhandled.