The water table of 5,747 habitations spread over 22 districts of the state was found contaminated, Public Health & Engineering Department (PHED) minister Chandramohan Rai said in reply to a question of BJP's Achutanand in the Assembly.
The minister said that a sum of Rs 113 crore has been spent in the last three years to supply pure drinking water in these areas of the state.
Rai said the government would address the problem of drinking water in these areas through the National Rural Drinking Water Programme (NRDWP).
He said the state government has entered into an agreement with the Centre for mapping of arsenic and fluoride affected districts.
Excess amount of arsenic and fluoride in water causes diseases related to skin and neurological disorders.