What is "'AGNI NATCHATHIRAM" ??

As such meteorologists in India and especially in TN never refer the word 'AGNI NATCHATHIRAM'. Perhaps ancient Tamil people in their climatology, might have classified this period [in the month of May]as hot summer period and named it as 'AGNI Natchathiram. There has been no reference in meteorological glossary, since hottest days may extend in June too.
But the wisdom of the ancient Tamils has to be considered.

Posted by Mr. Ponnachi G Son

6:30pm, Fresh western disturbance is crossing into Kashmir, and in another 24 hrs it'll be over Punjab & Rajasthan.. http://ow.ly/i/1nUl

6:30pm, Very heavy widespread showers over N-E states again .. http://ow.ly/i/1nUl

6:30pm, Isolated Showers over Madurai and along N-E corner of Tamilnadu.. http://ow.ly/i/1nUl

6:30pm, Heavy showers all along central madhya pradesh from West to East.. http://ow.ly/i/1nUl

@keyasmamma >> Did it rain in Pune today ?? pls update. Thanks

RT @keyasmamma: The clouds started peeping in pune.might be rain again.

Chennai - A dead thunder cell from S-W is over head now 6:30pm.

So far till 5pm, No showers over Kerala or Kerala western ghats.

5pm, new thunder cells over N-W maharastra over W. Ghats, N-E Andhra, S-E Bihar and central madhya pradesh.. http://ow.ly/i/1nPV