S. 23 : Income from house property-Annual value-Vacancy allowance-Only an intention to let out a property coupled with efforts to let out is sufficient to come within purview of section 23(1)(c)-As lease rental received was nil, addition made by Commissioner (Appeals) on basis of Annual Letting Value (ALV) under section 23(1)(a) was to be deleted. [S. 22, 23(1)(a), 23(1)(c)]