The victims were all women, who were on their way to work on farms in the neighboring state of Uttar Pradesh.
Thirteen women were rescued when the boat, also laden with vegetables, sunk in Buxar district late on Tuesday.
Buxar police official Babu Kumar told BBC Hindi that the boat was carrying 22 women workers when it capsized.
Three bodies were recovered by divers and 13 passengers were rescued, he said and added that six women were still missing.
Courtesy: BBC News