Ahead of the total lockdown in Chennai that is grappling with 34,000 coronavirus cases, the government has revised its strategy to break the chain. Now hundreds of fever camps are held across the city to identify symptomatic people. Families of positive patients are being shifted to new facility centres. Six ministers have been deployed to oversee coronavirus containment measures. NDTV spoke to Tamil Nadu Development Minister K Pandiarajan on the strategy, challenges and criticism.