How to show loss from under-construction house property

After construction period is over you need to claim it .When you file your return in AY 18-19 you must show  interest component of main EMI  plus 1/5 th of Total Pre-EMI interest during construction period of 2014 to 2017/2018 [as the case may be]. I hope I am corrrect on this . Experts please help him and enlighten me further on this. 

Pre-construction period is the period commencing on the date of borrowing and ending on

1. March 31 immediately prior to the date of completion of construction/date of acquisition OR
2. Date of repayment of loan, whichever is earlier

If the house is still under construction or if the loan is still not repaid fully, you will have to wait for one of the above after which you can claim the pre-construction interest in 5 instalments.