90. (1) A Hindu family hitherto assessed as a Hindu undivided family shall be deemed, for the purposes of this Ordinance, to continue to be a Hindu undivided family except where, and in so far as, a finding of partition has been given under this section in respect of that family. (2) Where, at the time of an assessment of a Hindu undivided family, it is claimed by any member thereof that a partition has taken place amongst the members of the family, the Deputy Commissioner of Taxes shall make an enquiry thereinto after giving notice to all the members of the family. (3) On the completion of the enquiry, the Deputy Commissioner of Taxes shall record a finding as to whether there has been a partition of the joint family property, and, if there has been such a partition, the date on which it has taken place. (4) In the case of a finding under sub-section (3) that the partition of the undivided family took place after the expiry of the income year, the total income of the income year of the undivided family shall be assessed as if no partition has taken place; and each member or group of members of the family shall, in addition to any tax for which he or it may be separately liable, be jointly and severally liable for the tax on the income of the family so assessed. (5) In the case of finding under sub-section (3) that the partition of the undivided family took place during the income year, the total income of the undivided family in respect of the period up to the date of partition shall be assessed as if no partition had taken place; and each member or group of members of the family shall, in addition to any tax for which he or it may be separately liable, by jointly and severally liable for the tax on the income of that period as so assessed. (6) Notwithstanding anything contained in this section, if the Deputy Commissioner of Taxes finds after completion of the assessment of a Hindu undivided family that the family has already effected a partition, the tax shall be recoverable from every person who was a member of the family before the partition; and every such person shall be jointly and severally liable for tax on the income of the family in so assessed. (7) For the purposes of this section, the several liability of any member or group of members of a Hindu undivided family shall be computed according to the portion of the property of the undivided family allotted to him or it at the partition. (8) The provisions of this section shall, so far as may be, apply in relation to the levy and collection of any penalty, interest, fine or other sum in respect of any period up to the date of the partition of a Hindu undivided family as they apply in relation to levy and collection of tax in respect of any such period.