(3)In the case of an individual or a Hindu undivided family, being a resident, in the case of transfer of a long-term capital asset, being land or building, or both, which was acquired before the 23rd July, 2024, the excess income-tax computed as per the following formula shall be ignored:––E = A – Bwhere––E = excess income-tax to be ignored;A = income-tax computed under sub-section (1)(b);B = income-tax computed under sub-section (1)(b) taking the rate as 20% and the capital gains is computed by taking the cost of acquisition as "indexed cost of acquisition" and the cost of improvement as "indexed cost of improvement".