¹[123B. Self assessment and submission of return.--(1) After the coming into force of the Delhi Municipal Corporation (Amendment) Act, 2003, any owner of any vacant land or covered space of building or any other person liable to pay the property tax or any occupier in the absence of such owner or person, shall file a return of self assessment within sixty days of the coming into force of the aforesaid Act.
    (2) Such owner or other person or occupier, as the case may be, shall, thereafter, file the annual return only in those cases where there is a change in the position as compared to the previous return, within three months after the end of the financial year in which the change in position has occurred.
    (3) Any owner of any covered space of building or vacant land or any other person liable to pay the property tax, or any occupier in the absence of such owner or person shall compute the tax due under section 114A or section 114C, as the case may be, and pay the same in equated quarterly installment by the 30th day of June, 30th day of September, 31st day of December and 31st day of March of the financial year for which tax is to be paid. In the event of tax being paid in one lump sum for the financial year by the 30th day of June of the financial year, rebate of such percentage not exceeding fifteen percent, as may be notified by ²[³[the Corporation]], of the total tax amount due shall be allowed.
    (4) Any owner of any vacant land or covered space of building or any other person liable to pay the property tax or any occupier in the absence of such owner or person, who computes such property tax under this section, shall, on such computation pay the property tax on such vacant land or covered space of building, as the case may be, together with interest, if any, payable under the provisions of this Act on
        (a) any new building or existing building which has not been assessed; or
        (b) any existing building which has been redeveloped or substantially altered or improved after the last assessment, but has not been subjected to revision of assessment consequent upon such redevelopment or alteration or improvement) as the case may be.
    (5) Such owner or person, as the case may be, shall furnish to the Commissioner a return of selfassessment in such form, and in such manner, as may be specified in the bye-laws and every such return shall be accompanied by proof of payment of property tax and interest, if any.
    (6) In the case of any new building for which an occupancy certificate has been granted, or which has been occupied, after the coming into force of the Delhi Municipal Corporation (Amendment) Act, 2003, such payment shall be made, and such return shall be furnished, within thirty days of the expiry of the quarter in which such occupancy certificate is granted or such building is occupied, whichever- is earlier.
    Explanation.For the removal of doubt, it is hereby declared that occupancy certificate may be provisional or final and may be for the whole or any part of the building and occupancy may be of the whole or any part of the building.
    (7) After the determination of the annual value of vacant land or covered space of building under section 116E or section 116F or revision thereof under section123C has been made, any amount paid on selfassessment under this section shall be deemed to have been paid on account of such determination under this Act as amended by the Delhi Municipal Corporation (Amendment) Act, 2003.
    (8) If any owner or other person as aforesaid, liable to pay the property tax under this Act, fails to pay the same together with interest thereon, if any, in accordance with the provisions of this section, he shall, without prejudice to any other action to which he may be subject, be deemed to be a defaulter in respect of such property tax, or interest, or both, remaining unpaid, and all the provisions of this Act applicable to such defaulter shall apply to him accordingly.
    (9) If, after the assessment of the annual value of any land or covered space, of building is finally made under this Act, the payment on self-assessment under this section is found to be less than that of the amount payable by the assessee, the assessee shall pay the difference within two months from the date of final assessment, failing which recovery shall be made in accordance with the provisions of this Act, but, after the final assessment, if it is found that the assessee has paid excess amount, such excess amount shall be refunded:
    Provided that in any case where the amount of tax determined in the final assessment is more than the amount of tax paid under self assessment, and the difference in the amount of tax is, in the opinion of the Commissioner, the result of wilful suppression of facts as defined in the bye-laws, the Commissioner may levy a penalty not exceeding thirty per cent of such difference in the tax besides the interest thereon:
    Provided further that the levy of such penalty shall be in addition to any other punishment provided for under this Act:
    Provided also that the procedure for sending of notice, hearing of objection and determination of tax and penalties shall be such as may be specified in the bye-laws.
    (10) Where no notice is sent by the Commissioner under section 123C within twelvemonths after the year to which such self-assessment relates, such self assessment shall be regarded as assessment made under this Act:
    Provided that in any case, where there has been wilful suppression of facts, penalty upto thirty per cent of the tax due may be imposed:
    Provided further that the procedure for sending of notice, hearing of objection and determination of tax and penalties shall be such as may be specified in the bye-laws.