The civic authorities in Mumbai clamped down with fresh safety measures as Covid numbers in the state and the city remained in an upward trajectory for a week, logging over 5000 cases on Thursday. Mumbai reported 736 cases. Citizens flouting rules for home isolation, weddings and public gatherings will be prosecuted, said an order from Municipal Commissioner Iqbal Singh Chahal. In two districts of the state -- Amravati and Yavatmal -- restrictions were put in place. Amravati has been placed under lockdown over the week-end -- from Saturday evening to Monday.