Hello taxpayer,
Going by the facts of your case, I understand that you and your father are joint owners along with your mother, of a plot of land which is being financed by a bank loan.
From income tax perspective, you can't avail any exemption either in respect of interest or principal repayments, as the legal provisions in this regard are specifically for housing loan and not plot loan as such.
However once you construct a house on this plot within specified time frame, then you can start availing tax benefits from the year construction is completed.
In case, its a dedicated housing loan, then the Co-borrowers can avail tax benefits, starting form the year construction is completed, in the proportion they have availed the loan.
Hope it answers your query. Feel free to reach out through telephonic consultation for detailed discussion.
Best Regards,