Tax-exemption notification conditions charitable application, permitted investments, business incidence, returns filing and dissolution asset transfer. Notification grants the Punjab Infrastructure Development Board tax-exempt status subject to conditions: income must be applied or accumulated exclusively for its objects; investments and deposits (except certain voluntary contributions in kind) must follow permitted modes; business income is excluded unless incidental and separately accounted; regular income-tax returns must be filed; and on dissolution surplus and assets must transfer to a like-minded charitable organisation.