Moisture diffusion during soaking of Kisan maize in water at temperatures ranging from 30 to 90 degrees C was studied. The soaking data were fitted in Becker＇s model to determine the moisture diffusivity. The moisture diffusivity was found to vary from 3.994x10(-8) to 40.967x10(-8) m(2)/h. The energy of activation of maize was found to be 35069.55 kJ/kg mol K. The relationship between moisture diffusivity and reciprocal of absolute temperature followed the Arrhenius equation as D=0.040107 e(-4217.96/Tw). A mathematical model for prediction of moisture content in maize with time, during hot water soaking was developed for known initial moisture content and water temperature as m = 2.08717 x 10(-2) - 2.21315 x 10(-4)t(w) + 2.0416 root(theta e(-4217.96/Tw)) + m(0)