Magnetized plane symmetric Bianchi type-I cosmological model with wet dark fluid is investigated in a scalar tensor theory of gravitation proposed by Saez-Ballester [7]. To solve the field equations, a special law of variation of Hubble’s parameter proposed by Berman [20] has been used. The exact solutions of the field equations are obtained. Some important geometrical and physical features regarding this model have also been studied.

Bianchi type-I, wet dark fluid, magnetic field, scalar-tensor theory.