The opening of Delhi's brand new "Signature bridge", three days before Diwali, was expected to be a festive event complete with a laser show. But it got off to a chaotic start this evening as BJP's Manoj Tiwari, refused entry, came to blows with the police. On live television, the Delhi BJP chief was seen throwing punches at the policemen -- even hitting one of them on the face -- till he was overpowered and escorted out.