Chief Petty Officer I. He relied upon Navy instructions No. 2/S/96, which provided that Artificers III and Chief Artificers have relative ranks of Chief Petty Officer. He also pointed out that, upon promotion to the rank of Artificer III, the Artificer sailors are appointed as Chief Petty Officers by a warrant issued by the President of India. He, therefore, submitted that though Artificers of III, II and I class are also Civil Appeal Nos. 6886-6887 of 2011 Page 3 of 9ranked as Chief Petty Officers, the grade pay of Rs.4200 granted to Chief Petty Officers has been denied to Artificers of III, II and I class, which is highly discriminatory. He submitted that in the counter affidavit filed by the first respondent, it was accepted that Artificers of class I, II and III hold a relative rank of Chief Petty Officer. Still, they are denied grade pay of Rs.4200 on par with the grade pay of the Chief Petty Officer. He also relied upon Navy instructions No. 2/S/96, annexed as Annexure R-2 of