Section 3(3) in The Assam Engineering (Public Works Department) Service Rules, 1978
(3)The cadres of Superintending Engineers, Executive Engineers, Assistant Executive Engineers and Assistant Engineers may have distinct Branches namely, Civil, Mechanical and Electrical and each Branch may be deemed to be a separate Cadre.(3-A) The posts in cadres, (iii) and (iv) (Senior Grade) mentioned in sub-rule (1)(a) shall be borne in the civil branch unless specifically created for any other branch, as may be considered necessary.
