In Patna the mercury touched 40.4 degree celsius up from 38 degrees yesterday, state Met office bulletin said.
Temple town of Gaya was the hottest at 42.6 degree celsius.
Maximum temperature at Bhagalpur and Purnea was 39.7 and 36.2 degree celsius respectively.
The weather office forecast partly cloudy sky in Patna and Gaya and rain or thundershower in Bhagalpur and Purnea tomorrow.
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