Substitution of La and Fe with Dy and Mn in multiferroic La1−xDyxFe1−yMnyO3 nanocrystallites

► Enhanced magnetic and electrical properties of substituted LaFeO3 multiferroic are explored. ► Single step simultaneous double ion substitutions method is introduced for LaFeO3. ► La1−xDyxFe1−yMnyO3 nanoparticles with variable compositions of x and y are synthesized. ► About 5 fold increase in Mr and 60% increase in Ms make these materials attractive for various technological applications. ► 11 fold increase in resistivity of La1−xDyxFe1−yMnyO3 (for, x, y=1.0) nanostructures is good for microwave plan application.