The Election Commission has reacted sharply to Trinamool Congress's allegation that the attack on Mamata Banerjee at Nandigram on Wednesday was the result of the sudden removal of the state's Director General of Police just 24 hours earlier. Ms Banerjee's former aide turned rival, Suvendu Adhikari will file his nomination in Nandigram today. Union Ministers Babul Supriyo and Smriti Irani will be present. The centre is "very worried" about the surge in coronavirus cases in Maharashtra, NITI Aayog member Dr VK Paul said on Thursday. In Delhi, daily Covid cases crossed 400-mark. Denmark, Norway and Iceland have suspended the use of AstraZeneca's COVID-19 vaccine following reports of the formation of blood clots in some people who had been vaccinated.