Authorities in Tamil Nadu, as part of efforts to prevent the spread of coronavirus use drones, mist cannons and have come up with innovative ideas like using catchy taglines to spur people to walk through the disinfectant tunnels when they visit market places. In the State capital, which has 172 coronavirus positive cases, the highest when compared with other districts in Tamil Nadu, Greater Chennai Corporation officials use drones in densely populated neighbourhoods like Thiru-Vi-Ka Nagar as children watch the drive with curiosity from their balconies.
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