SEO Sai Gr. Hosp.
208912 Points
Joined July 2016
Its controversial issue. Few case laws are in support of claiming interest as COI, but in general AO would not allow. There is no clarity in act, so no guaranty that you also get same result.
Natural justice says, its the cost incurred by assessee when he paid only margin money and not full amount initially. So while taking indexation on COA, whether he will choose the agreement date or date on which he fully repaid his home loan. If first agreement date, he cannot take advantage of deduction of interest, as the principal amount he could not pay on first date.
Indirectly it harms the assessee who paid full amount initially.