Ramachandra Menon, J.

1. The petitioners [as many as 50 persons] who were the applicants in different O.A.s, such as O.A. Nos. 2339, 2371, 2250, 2329, 2281, 2388, 2143, 2026, 1873, 1782, 1672 and 1674 of 2016 filed before the Kerala Administrative Tribunal, have filed this Original Petition, joining together, challenging the common order dated 23.05.2017 passed by the Kerala Administrative Tribunal in the different O.A.s

2. The Original Petition stands numbered by the Registry. When it came up for admission before this Court, a doubt was expressed by this Court as to whether a 'common O.P.’ as now presented before this Court, would be maintainable, although it arises from the 'common order' dealing with the different O.A.s. The learned counsel for the petitioners sought to assert the maintainability with reference to Rule 147A of the Rules of the High Court of Kerala, 1971 and also the ruling rendered in Mariamma Punnose Vs. Tahsildar, Kunnathunad [1979 KHC 182] and in M. Leonard Ashok Vs. Commerical Tax Officer - 1 and others [2007 (1) KHC 67] contending that the persons, having a common cause of action, can join together and file a single petition, provided, necessary cou