1. Heard the arguments of Mr. V. Prakash, learned Senior Counsel appearing for Mr. K. Sudalaikannu, learned counsel for the petitioner in W.P.No.28891 of 2012, Mr. R. Yashod Varadan, learned Senior Counsel appearing for the impleading party, namely Tamil Nadu Bank Employees Federation of India/the petitioner in the other two Writ Petitions, seeking to implead them as a party to the Writ Petition in W.P.No.28891 of 2012, Mr. K. Marimuthu, learned counsel for the petitioner forum in W.P.NOS.2830 and 3104 of 2013, Mr. M. Christopher, learned Standing Counsel for Tamil Nadu State Apex Cooperative Bank and Mr. E.M.S. Natarajan, learned Government Advocate (Cooperatives), on taking notice for the official respondents in all these Writ Petitions.

2. In W.P.No.28891 of 2012, the petitioner is Tamil Nadu Cooperative Bank Employees Association affiliated to AIBEA AND AICBEF, represented by its General Secretary. In that Writ Petition, the petitioner trade union challenges the Circular issued by the Registrar of Cooperative Societies, Chennai dated 27.9.2012. By the impugned circular, the Registrar of the Society informed the Special Officer of the Special Officer of the Tamil Nadu S