Hi,
The pre-construction interest will be allowed to the extent of 20% for 5 years (20% * 5 years = 100%) from the financial year in which the construction is completed. It means the assessee can avail the exemption for
a. Pre-construction interest over a period of 5 years +
b. Regular interest that is paid in the respective year
Maximise the tax benefit:
1. In case of self-occupied property, the maximum benefit you get is Rs.2 lakhs only
2. If you let it out, you can claim the entire amount of interest as tax benefit.
We would suggest you let out the property once it is completed and claim the entire interest.