It seems property to be sold out is plot
1. Total sale amount. Benefit would be available u/s 54F
2. Yes
New Property should be purchased within 2 years or constructed within 3 years from the date of sale of the property. To avail the exemption, either utilize the total sale amount in purchase/construction of new residential house property or deposit in capital gain account scheme before the due date of filing of the ITR
As the property was purchased before 01.04.2001, you can opt for stamp duty value of the property as on 01.04.2001 as the cost of acquisition if it is more than the actual cost of acquisition. You can also claim cost of improvement if it is of capital nature and supported by proper documentation. Interest of housing loan can also be considered as a part of cost of acquisition if no other benefit of the same has been claimed
At the date of transfer of plot (original asset), your wife should not own more than one residential house property (other than new house). The new house property should not be transferred within 3 years of its purchase or construction
For detailed discussion you may opt for phone consultation