Section 3(1)(a) in The Assam Engineering (Public Works Department) Service Rules, 1978
(a)Class I (Senior Grade) : It shall include the cadres/posts-(i)Secretary, P.W.D.(ii)Deputy Secretary, P.W.D. equivalent to the rank of Superintending Engineer, P.W.D.(iii)Chief Engineer, P.W.D.(iv)Additional Chief Engineer, P.W.D.(v)Superintending Engineer, P.W.D.(vi)Director, Road Research Laboratory.(vii)Senior Architect in the rank of Superintending Engineer, P.W.D.