Whether rental income is business income or income from house property is an issue that is a fighting point between tax department and taxpayers for quite long time. Various courts and Tribunals have intervened and gave judgments. But the controversy still persists. Now add to this controversy is the new rental opportunities for many house or property owners by letting mobile operators on the roof or terrace. That gives them a new opportunity to earn some income from unused space -roof or terrace of a building. The controversy is whether the income from rental of the roof or terrace for letting mobile operators antenna tower or others to put hoarding for advertisement is income from house property or income from other sources or business income.