¹[115A. Unit of assessment.—(1) Every building and every vacant land shall be assessed as a single unit:
    Provided that where portions of any building or vacant land are separately owned so as to be entirely independent and capable of separate enjoyment, notwithstanding the fact that access to such separate portions is made through a common passage or a common stair case, as the case may be, such separately owned portions may be assessed separately.
    (2) All buildings, to the extent they are contiguous or are within the same cartilage or are on the same foundation and are owned by the same owner or co-owners as an undivided property, shall be treated as one unit for the purpose of assessment under this Act:
    Provided that if any such building is sub-divided into separate shares which are not entirely independent and capable of separate enjoyment, the Commissioner may, on application from the owners or the coowners, apportion the valuation and assessment of such building among the co-owners according to the value of their respective shares, treating the entire building as a single unit.
    (3) Each residential unit with its percentage of the undivided interest in the common areas and facilities, constructed or purchased and owned by, or under the control of, any housing co-operative society registered under any law regulating co-operative housing for the time being in force, shall be assessed separately.
    (4) Each apartment and its percentage of the undivided interest in the common areas and facilities in a building within the meaning of any law regulating apartment ownership for the time being in force, shall be assessed separately.
    (5) If the ownership of any vacant land or building or any portion thereof is sub-divided into separate shares, or if more than one adjoining vacant land or building or portion thereof comes under one ownership by amalgamation, the Commissioner may, on an application from the owner or the co-owners, as the case may be, separate, or amalgamate, as the case may be, such vacant land or building or portion thereof so as to ensure conformity with the provisions of this section.
    (6) Notwithstanding any assessment made in respect of any vacant lands or buildings before the commencement of the Delhi Municipal Corporation (Amendment) Act, 2003, the Commissioner may, on his own or otherwise, amalgamate, or separate, or continue to assess, such vacant lands or buildings or portions thereof so as to ensure conformity with the provisions of this section.
    (7) The Commissioner shall, upon an application made in this behalf by an owner, lessee, sub-lessee, or occupier of any vacant land or building and upon payment of such fee as may be prescribed in the byelaws, furnish to such owner, lessee, sub-lessee, or occupier, as the case may be, information regarding the apportionment of the property tax on such vacant land or building among the several occupiers of such vacant land or building for the current period of assessment or for any preceding period of assessment:
    Provided that nothing in this sub-section shall prevent ²[³[the Corporation]] from recovering the arrear dues on account of property tax from any such person, jointly or severally.