Cyclone Ditwah has been moving in the Indian Ocean region for almost a week now. It originated southeast of Sri Lanka on November 26 and moved slowly northwards along Sri Lanka’s eastern coastline, causing large-scale devastation. Hundreds of people are reported to have been killed in Sri Lanka. The remnants of Ditwah have continued to move northwards, reaching the Indian coastline, and on Tuesday, were located about 40 km southeast of Chennai around noon.

The Indian Ocean region is no stranger to tropical cyclones. Multiple cyclones are formed in the Indian Ocean every year, and many of them arrive on the Indian coastline, both from the Bay of Bengal side as well as the Arabian Sea side. Over the years, India has built an elaborate mechanism to deal with these cyclones and minimise t

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