A public charitable trust running a school, with a vacant site, can enter into a joint venture agreement with a developer to generate income for charitable activities. The trust can receive rental income from its share of flats in the developed property. This is permissible under the Income Tax Act, provided the terms are at arm's length, no private benefit is derived, and ownership remains with the trust. While capital gains may be triggered, they can be exempt if the trust is registered under Section 12AB and the gains are reinvested for charitable purposes.