Section 25

Filling of casual vacancies- Any casual vacancy among the members,
other than ex-officio members, of any authority shall be filled, as soon as
conveniently may be, by the person, or Authority who appointed, elected,
nominated or co-opted the member whose place has become vacant and the
person appointed, elected, nominated or co-opted, to a casual vacancy shall be
a member of such Authority for the residue of the term for which the person
whose place he fills would have been a member.