Section 194A(3) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(3)The owner or occupier of the building shall carry out the work mentioned in the notice issued by the Chief Officer under sub-section (2), within thirty days from the date of receipt of the notice or such longer period as the Chief Officer may, having regard to the nature and the extent of work to be carried out, specify.