Heavy downpour in a few areas in the eastern parts of the state hit train services between Jamui and Chura railway stations and Kiul and Bhagalpur on Wednesday.

The rainfall was caused because of a stationed cyclonic circulation that hovered over southeastern Bihar and the adjoining parts of Jharkhand.

Some of the places in eastern Bihar, including Jamui (191mm), Jhajha (142mm), Lakhisarai (168.8mm), Munger (102.6mm) and Bhagalpur (153.3mm) received heavy rainfall from Tuesday evening to Wednesday morning under the influence of the cyclonic circulation.

Patna, too, witnessed a little over 6mm of rainfall in the last 24 hours.

An east central railway official told The Telegraph that train movement between Jamui and Chaura railway stations was stopped because of waterlogging on the tracks at 9.50am but it was resumed at 10.45am. Four mail and express trains got delayed by an hour because of the problem.

As far as the movement of trains between Kiul and Bhagalpur is concerned, the service stopped at 5.40am because of waterlogging at Kajra railway station.

Weathermen at Patna MET office said the intensity of the rainfall in Bihar was set to witness a drastic drop now as the moisture feeding on the cyclonic circulation from the Bay of Bengal side had stopped.

"A few places in Bihar may witness rainfall in the next 24 hours after which the weather was likely to become clearer," said Patna MET office scientist Anand Shankar.

The moisture feeding to the cyclonic circulation stopped as a new system had developed near the South China Sea, which was moving towards the Andaman and Nicobar islands and was likely to reach there in four days.

Also, monsoon was likely to withdraw from Bihar in the next five to six days as a northerly wind had set in that would pave the way of withdrawal of the rain-bearing winds from the state.

Shankar said the day temperature in Patna was likely to hover between 31 and 34 degrees Celsius for the next four to five days whereas the night temperature was likely to be around 25 degrees Celsius.

The scientist added that the system, which had developed over the South China Sea and was moving towards Andaman and Nicobar Islands, could advance towards Bihar around Diwali, bringing some rainfall.

"It is just a possibility based on the conditions prevailing at present and the exact picture would emerge in the next four to five days," he added.

Diwali would be celebrated on October 19.