There is a distinction between a receipt for transfer of ownership rights in property and a receipt for transfer of tenancy rights in respect of a property because though both are assessable as capital gains, in the case of tenancy rights, the “cost of acquisition” is deemed to be Nil u/s 55(2)(a) unless if it is purchased for a cost. The fact that the assessee assigned his rights, together with the owner, pursuant to the tripartite agreement did not mean that the assessee’s had ownership rights in the property. S. 50 C applies “where the consideration received or accruing as a result of the transfer by an assessee of a capital asset, being land or building or both, is less than the value adopted or assessed or assessable by any authority of a State Government …… for the purpose of payment of stamp duty in respect of such transfer”. The sine qua non for application of s. 50 C is that the transfer must be of a “capital asset, being land or building or both”. A “leasehold right in land or building” cannot be equated with the “land or building”. Accordingly, s. 50C has no application to the assignment of leasehold/ tenancy rights