<span style="color: #222222;">In Tamil Nadu, the principal opposition DMK has expressed concern that the doubling rate of Covid19 cases in the state has come down to eleven days.<br />'' <br />'' In a tech-enabled media interaction today, he said the rate of increase of new cases is the most in Chennai as compared to all the other cities in the country.<br />'' <br />''He criticised that the AIADMK government has failed to take diligent efforts to contain the spread of the pandemic from the beginning.</span>