In a statement issued here, the department said with the new cases, which include 50 persons who had come from other states, took the total tally to 23,495. The number of infected children in the age group 0-12 went up to 1,322.
The statement also said 11 Covid-19 patients died, taking the total death toll to 184.
The total number of active cases in the state stands at 20,138.
State capital Chennai with its high density of population continued to see the highest number of infections at 964 taking the total tally to 15,770. Chengalpattu district reported 48 coronavirus positive cases.
As on Monday, coronavirus cases in Chennai stood at 15,770, followed by Chengalpattu (1,223), Tiruvallur (981) and Kancheepuram (416).
According to Greater Chennai Corporation officials, the infection rate in the city will go up for some more time and then come down.
On Monday, 11,377 samples were tested taking the total to 5.03 lakh. Testing of 636 samples are under process.