Section 278(1) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(1)No person shall, without a licence granted in accordance with the bye-laws made in this behalf, establish or materially alter, enlarge or extend or permit the establishment, material alteration, enlargement or extension of any factory, workshop or place of business in which it is intended to employ steam, electricity, water or other mechanical power.