S. 11 : Property held for charitable purposes-Specific purposes and objects without profit motive-Investment in Joint venture and utilisation of land allotted by Government for commercial purposes and earning profits in form of rental Income and sharing of profits-Deviation and contravention of objects, purposes and mission-Not entitled to exemption-Denial of exemption cannot be restricted only to extent of sum of investment in joint venture-Assessee is not entitled to exemption. [S.11(5), 12, 12A,13(1)(d), 80G, 260A]