i purchaased a leased house in Nov 1988 from Ujjain Development Authority Ujjain. The lease period was initially for 30 years. I paid annual lease rent to UDA. UDA charged interest on a few occassions for late payment of lease rent. This property is sold out in sold out in Sept' 2017. My question is whether this lease rent & interest should be added in cost of acquisition or not. Pl answer