Question

why there is severe rainfall in Tamilnadu 2 times

Answer 1

because it is the area close to sea and the evaporation takes place very fast there..

Answer 2

Heavy to very heavy rainfall is likely to occur at isolated places in Tamil ... and the adjoining south west Bay of Bengal now lies there, the bulletin said. Thus it is also close to the sea, so that is why there is a lot of rainfall in Tamilnadu.
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