The relief amount of Rs 6000 will be disbursed through the Public Financial Management System (PFMS) directly to the bank accounts of those affected.
According to the India Meteorological Department (IMD), Patna will receive more rainfall in the coming days which will be accompanied by thunderstorms.
Three people died after a wall collapsed in Bhagalpur following heavy rain in the region, many feared trapped.
In Patna, where the weather office has predicted heavy rain till September 30, the district administration has ordered closure of all schools till Tuesday.
Hitting out at Nitish, the RJD leader said if he was batting so well then why he asked for votes in the name of Prime Minister Narendra Modi instead of his work.
Modi's comments did not go down well with the Congress, which countered that the abuses being hurled against the Gandhi family since the announcement that Priyanka Gandhi would enter politics betrayed the panic in the BJP ranks.