<span style="color: #222222;">In Chennai, 72 of the Covid19 infected police personnel have returned to their duties after complete recovery.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">At a brief function held in the city today, the city police commissioner Mahesh Kumar Agarwal gave away commendation certificates to them.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">Meanwhile, the Covid-19 tally in Tamil Nadu has soared to over one lakh, 42 thousand with 4328 people confirmed positive today.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">However, a little over three thousand people returned home after recovery. The death toll has mounted to more than two thousand with 66 patients succumbing to the disease in the last 24-hours.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">The state local bodies minister SP Velumani has said the containment measures being followed in Chennai needs to be followed in other cities in the state.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">AIR correspondent reports, the new Covid-19 cases in Chennai has been less than 1300 for the past 13 days which was earlier hovering around the figure of 2000.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">Medical experts say gradual gaining of herd immunity, improvement in wearing masks, practicing handwashing and the aggressive containment measures have started yielding good results.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">The containment measures in the city include holding fever camps, deployment of field workers for house to house screening and for doing follow up and pressing into service hundreds of volunteers to reach out to the people under isolation or quarantine.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">Local bodies minister SP Velumani has said the same methodology needs to be replicated in all other corporations, municipalities and town panchayats in coordination with the state health department.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">His remarks come in the wake of the figures soaring to new peaks outside the state capital.</span><br />''