to issue a writ order or direction more particularly one in the nature of writ of mandamus declaring the orders issued by the 1st respondent in proceedings Nos APERC/Secy /Jt Dir TariffEngg /No 05 APERC/Secy /Jt Dir TariffEngg /No 06 APERC/Secy /Jt Dir TariffEngg /No 07 and APERC/Secy /Jt Dir TariffEngg /No 08 even dated 5 6 2010 purportedly determinging and approving Fuel Surchage Adjustment FSA for the financial year 20082009 April 2008 to March 2009 contrary to Regulation No 1 of 2003 and without any notice or public hearing as required by law as being arbitrary illegal without jurisdiction or power and in violation of principles of natural justice and the provisions of Andhra Pradesh Electricity Reform Act 1998 and Electricity Act 2003 besides violating petitioners rights guaranteed under Art 14 191g and 300A of Constitution of India and set aside the same