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As the date of acquisition of property falls prior to 1 April 2001, she has a choice to consider the Fair Market Value (FMV) of the property as on 1 April 2001 as her cost.
So, firstly she needs to get the valuation report of property as on 01.04.2001.
To calculate the long-term capital gains tax payable, the following formula is to be used:
Long-term capital gain = full value of consideration received or accruing – (indexed cost of acquisition + indexed cost of improvement + cost of transfer), where:
Indexed cost of acquisition = cost of acquisition x cost inflation index of the year of transfer/cost inflation index of the year of acquisition.
Indexed cost of improvement = cost of improvement x cost inflation index of the year of transfer/cost inflation index of the year of improvement.
Exemption from long term capital gains
She can claim an exemption from LTCG, under section 54 of the income-tax Act if the LTCG is reinvested in a new residential property located in India within the specified time frames. Where the new property is purchased, the gain is required to be reinvested either within 1 year prior to sale date or 2 years after the sale date. Where the new property is constructed, the time period prescribed for the reinvestment is within 3 years from the date of sale of the original asset.
Alternatively and/or additionally, she can invest the capital gains of up to Rs 50 lakhs in bonds of NHAI or REC, within six months of its accrual and get the exemption u/s 54EC.