To abul Ram did no burn Lanka, it was hunuman who burnt the city where ravan lived and he did it on his own not on rama instruction.Anyway when battle was going on therie were many casulties on both sides so the war was desided to be only between ram and ravan .Krishna did no take part in mahabharat war but he gave his army to drodhan. The mythology of devas and asuras fighting in the puran mentioned were the actual events between devas(people of india)and asuras(people of iran)historic battles nothing spritual about that.Regarding Mohammed he killed and converted whole of arabia into muslims even non meccans who had done no harm to him or his people anytime that is the reason you dont find a singal pagan arab(all where exclusily converted to islam).
