law: Maharashtra Rent Control Act, 1999 
  30. Conversion of residential into commercial
  
  premises prohibited. 
  (1) A landlord shall not use or permit, to be
  
  used for a commercial purpose any premises which, on the date of the commencement
  
  of this Act, were used for a residential purpose.
  (2) Any landlord who contravenes the
  
  provisions of sub-section (1) shall, on conviction, be punishable with
  
  imprisonment for a term which may extend to six months or with fine which may
  
  extend to ten thousand rupees or with both.