Chief Artificer-II. The Chief Petty Officer has a promotional avenue to the post of Master Chief (PO) – II. Master Chief Artificer -II and Master Chief (PO) -II have been given the same grade pay of Rs.4600. For the purposes of grade pay, Artificers of grades I, II and III are placed between Artificers of grade IV and Chief Artificer. Though for the purposes of seniority, Artificers in grades III may be Chief Petty officers, they cannot seek promotion directly to the post of Master Chief Artificers. Civil Appeal Nos. 6886-6887 of 2011 Page 8 of 9They can seek promotion to the post of Chief Artificer. Therefore, the grade pay of the Artificer III to I category is between the grade pay of Artificer IV and the grade pay of Chief Artificer. The grade pay of Artificer IV is Rs.2800 and the grade pay of Artificers III to I is Rs.3400. The grade pay of Chief Artificer is Rs.4200/-. 12. Therefore, there is neither any illegality nor arbitrariness in giving grade pay to Artificers III to I