Section 3(1)(b) in The Assam Engineering (Public Works Department) Service Rules, 1978
(b)Class I (Jr. Grade) : It shall include the cadres-(i)Under-Secretary equivalent to the rank of Executive Engineer;(ii)Executive Engineer, P.W.D.(iii)Architect.(iv)Research Officer, Road Research Laboratory, P.W.D.(v)Assistant Executive Engineer/Assistant Director-cum-Assistant. Executive Engineer, Road Research Laboratory.(vi)Deputy Architect, P.W.D.(vii)Assistant Engineer.(viii)Assistant Architect(ix)Assistant Research Officer, R.R.L.