Section 38(1)(b) in The Gujarat Slum Areas (Improvement, Clearance and Redevelopment) Act, 1973
(b)in the case of any notice or order affecting a corporation, firm or other body or association of persons, be served in the manner provided for the service of summons in rule 2 of Order XXIX or rule 3 of Order XXX, as the case may be, in the First, Schedule to the Civil Procedure, Code, 1908 (V of 1908);