Where the landlord in respect of any premises is any company or other body corporate or any local authority or any public institution and the premises are required for the use of employees of such landlord or in the case of a public institution, for the furtherance of its activities, then, notwithstanding anything contained in section 14 or any other law, the Controller may, on an application made to him in this behalf by such landlord, place the landlord in vacant possession of such premises by evicting the tenant and every other person who may be in occupation thereof, if the Controller is satisfied--

   (a)  that the tenant to whom such premises were let for use as a residence at a time when he was in the service or employment of the landlord, has ceased to be in such service or employment; or

   (b)  that the tenant has acted in contravention of the terms, express or implied, under which he was authorised to occupy such premises; or

   (c)  that any other person is in unauthorised occupation of such premises; or

   (d)  that the premises are required bona fide by the public institution for the furtherance of its activities.

   Explanation.--For the purposes of this section, "public institution" includes any educational institution, library, hospital and charitable dispensary ¹[but does not include any such institution set up by any private trust].