$2{\mathrm{K}}_2{\mathrm{MnO}}_4+{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}⟶2{\mathrm{KMnC}}_4+2\mathrm{KOH}+{\mathrm{O}}_2$

In the above reaction ${\mathrm{O}}_3$ acts as  oxidising agent and the oxidised product obtained is:

$2{\mathrm{K}}_2{\mathrm{MnO}}_4+{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}\to 2{\mathrm{KMnO}}_4+2\mathrm{KOH}+{\mathrm{O}}_2$

In the above reaction ozone acts as oxidising agent and the oxidised product obtained is ${\mathrm{KMnO}}_4$