Particulars to be furnished to the Controller Section 21(1) Every landlord and every tenant of a building or rented land shall furnish to the Controller, or any person authorised by him in that behalf, the follow ing particulars namely: (emphasised) (a) name and number of the building or rented land, if any, or its description and bound aries sufficient to identify it; (b) street and municipal ward or division in which the building or rented land is situated; (c) name and address of the landlord, if the particu lars are furnished by the tenant and name of the tenant, if the particulars are furnished by the landlord; (d) whether the building is a residential, non residential or a scheduled building; and (e) nature of amenities provided by the land lord to the tenant Mr. R.F. Nariman laid stress on the word "shall" occur ring in the above rules particularly Rule 4(c) and contended that these rules are mandatory in character and so the non compliance would amount to violation of the imperative (i.e. mandatory) provisions of these rules.