to issue a Writ or order or direction more particularly one in the nature of Writ of Mandamus declaring the proceedings No APERC/SECY JT DIRTARIFFENGC No 05 06 07 08/ dated 562010 of the 1st Respondent as illegal arbitrary unjust irrational unauthorized and contrary to Clause 45B4 of the A P Electricity Regulatory Commission Conduct of Business Regulation No 2/1999 and Articles 14 and 19 of Constitution of India and consequently set aside the same