Section 217(1)(c) in The U.P. Municipalities Act, 1916
(c)require by a written notice the owner or occupier of any building to affix thereto a number plate or new number plate to a pattern approved by the [Municipality] [Substituted by U.P. Act No. 12 of 1994.] or itself cause a number or a new number to be affixed to or marked on any building.