Appellate orders of the Additional Collector and Appellate Officer under Section 35 of the Act. The Petitioners claim to be carrying on business in the name of Ambika Auto Works and occupiers of structures in a property, bearing Final Plot No.571 of TPS-IV of Mahim Division at Dadar (West) in Mumbai. The property is being developed under the Amended Development Control Regulations 33(10) through a Slum Rehabilitation Scheme. The Slum Rehabilitation Authority has issued an LOI in favour of Respondent No.5 Developer for development in terms of the Slum Rehabilitation Scheme. Annexure II issued in respect of the property showed the structure of Ambika Auto works as eligible at Serial No.24 for getting permanent alternate accommodation under the scheme, whilst the Petitioners are shown at Serial Nos.25, 26, 27 and 28 as non-eligible occupants on the ground that no documents were submitted by them showing possession prior to 1 January 1995. The Petitioners have filed their substantive appeals for deciding their eligibility before the Additional Collector and Appellate Officer, Mumbai City in accordance with law. Pending these appeals, the Competent Authority has issued notices under Section 33 of the Act and passed the impugned final orders directing the Petitioners to vacate their respective structures. The Petitioners' appeals were rejected by the Appellate Authority. The Petitioners, in the premises, pray for a writ of certiorari for quashing and setting aside the impugned original and appellate orders and require a mandamus for directing the Additional Collector and Appellate Officer, Mumbai City to decide their appeals in respect of their eligibility under the proposed Slum Rehabilitation Scheme.