Section 273(1) in Uttar Pradesh Municipal Corporation Act, 1959
(1)The Municipal Commissioner shall from time to time cause all public streets vested in the Corporation to be leveled, metalled or paved, channelled, altered and repaired, as occasion shall require, and may also from to time widen, extend or otherwise improve any such street or cause the soil thereof to be raised, lowered or altered and may place and keep in repair fences and posts for the safety of pedestrians :Provided that no widening, extension or other improvement of a public street, the aggregate cost of which will exceed five thousand rupees or such higher amount as the Corporation may, from time to time fix, shall be undertaken by the Municipal Commissioner unless or until such undertaking has been authorized by the Corporation.