The number of active cases in Chennai dropped from over 4,000 on Thursday to 3,924 on Friday.
Chennai and Coimbatore were the only districts to report over 100 cases on the day, with the capital reporting 396 cases and Kovai 158.
After 2,251 people were discharged following treatment, Tamil Nadu now has 13,907 active cases.
Medilabs, a Chengalpattu private lab, has been approved for COVID-19 testing, according to the media bulletin issued by the Directorate of Public Health.
Kerala recorded 7,201 new COVID-19 cases on Saturday, including 61 health workers, as the toll climbed to 1668 with 28 new fatalities.
Following this, the minister directed the registrars to send formal requests to the departments concerned.
Vaidhyanathan was admitted on August 4 with symptoms of fever, cough and breathlessness while his wife, Janagi, too presented with symptoms.
Doctors believe that the single biggest contributor to fatalities currently might be patients seeking medical attention late in the course of the illness.
Tamil Nadu’s first Covid fatality was recorded in the district on March 25.
While one hospital was pulled up for discharging a patient at midnight for being unable to pay the bill, some others had to make settlements of up to Rs 2 lakh after charging excess fees.
While Chennai recorded 1,148 cases, neighbouring districts of Chengalpattu, Kancheepuram and Tiruvallur recorded 255 cases, 112 and 192 cases respectively.
While Chennai and its surrounding districts accounted for 39 pc of new cases, the western region accounted for 26.8%.
Chennai recorded 1,164 cases. Chennai's neighbouring districts of Chengalpattu, Kancheepuram and Tiruvallur reported 252, 129 and 236 cases respectively.
Close to 30,000 samples are to be tested in the first phase of the study which will begin in a week.
Over 6 lakh people have been discharged following treatment so far.