1) The date of sale deed (July 2014) is the purchase date.
2) From the conveyance deed we need to check whether any possession was also handed over to you (even a notional possession is a possession under sec 53 A of transfer of property act).
3) If the conveyance deed dated July 2014 includes possession, then the purchase date is only July 2014.
4) Short-term capital loss can be set off against long-term or short-term capital gain. If loss under the head “Capital gains” incurred during a year cannot be adjusted in the same year, then unadjusted capital loss can be carried forward to next year.
5) In the subsequent year(s), such loss can be adjusted only against income chargeable to tax under the head “Capital gains”, however, long-term capital loss can be adjusted only against long-term capital gains. Short-term capital loss can be adjusted against long-term capital gains as well as short-term capital gains.
6) Such loss can be carried forward for eight years (8 Assessment years) immediately succeeding the year in which the loss is incurred.
7) Such loss can be can carried forward only if the return of income/loss of the year in which loss is incurred is furnished on or before the due date of furnishing the return, as prescribed under section 139(1).
8) Mandatory Filing of IT return in order to carry forward and set-off of a loss in stipulated time
9) As per section 80 of Income tax act, the assesses must have filed a return of loss under section 139(3) in order to carry forward and set off a loss. In other words, the non-filing of a return of loss disentitles the assesses from carrying forward the loss sustained by him. Such a return should filed within the time allowed under section 139(1).
Hope this helps.