We have perused number of decisions of this Court which have interpreted the words, in Section 11 (15), namely, "any other object of generally public utility". From the said decisions it emerges that the said expression is of the widest connotation. The word "general" in the said expression means pertaining to a whole class. Therefore, advancement of any object of benefit to the public or a section of the public as distinguished from benefit to an individual or a group of individuals would be a charitable purpose [Commissioner of Income-tax, Gujarat-III, Ahmedabad v. Ahmedabad Rana Caste association, (1983) 140 ITR 1 SC]. The said expression would prima facie include all objects which promote the welfare of the general public. It cannot be said that a purpose would cease to be charitable even if public welfare is intended to be served. If the primary purpose and the predominant object are to promote the welfare of the general public the purpose would be charitable purpose. When an object is to promote or protect the interest of a particular trade or industry that object becomes an object of public utility, but not so, if it seeks to promote the interest of those who conduct the said trade or industry [Commissioner of Income-tax Madras v. Andhra Chamber of Commerce, - (1965) 55 ITR 722 SC]. If the primary or predominant object of an institution is charitable, any other object which might not be charitable but which is ancillary or incidental to the dominant purpose, would not prevant the institution from being a valid charity- [Addl. Commissioner of Income-tax, Gujarat v. Surat Art Silk Cloth Manufacture Association, (1980) ITR SC].