In this work, new doping approaches are proposed towards effective band structure and magnetism engineering of Janus MoSSe monolayer. In its pristine form, MoSSe monolayer is a direct gap semiconductor. Magnetic semiconductor nature is obtained by doping with Al/Ga atoms at Mo sublattice and P atom at S sublattice. Herein, overall magnetic moments of 3.00/2.96 and 1.00