The Chennai police have invoked Section 41 of the Chennai City Police Act regulating processions, demonstrations, fasts. Tamil Nadu has recorded 7,819 Covid cases in the last 24 hours. | Photo Credit: IANS Key Highlights Tamil Nadu has recorded 7,819 Covid cases in the last 24 hours. Control rooms to resume in all 15 zones in Chennai; contact tracing to be ramped up Chennai: As COVID-19 cases continue to rise in the city as well as other parts of the country, the Chennai Police has banned mass assembly in the city for 15 days. The city police have invoked Section 41 of the Chennai City Police Act regulating processions, demonstrations, fasts, human chain, meetings, assemblies etc within Chennai police limits for a period of 15 days.