The concept of minimal structure (briefly m-structure) was introduced by V.
Popa and T. Noiri [4] in 2000. Also they introduced the notion of mX -open
set and mX-closed set and characterize those sets using mX -closure and mX -
interior operators respectively. Further they introduced m-continuous func-
tions and studied some of its basic properties. J.C. Kelly [1] introduce the
notion of bitopological spaces. Such spaces are equipped with two arbitrary
topologies. Furthermore, Kelly extended some of the standard results of sep-
aration axioms in a topological space to a bitopological space. Thereafter, a
large number of papers have been written to generalize topological concepts
to bitopological setting. In this paper, we introduce the concept of bimin-
imal structure space and study m1 m2 -closed sets and m1 m2 -open sets in
X X X X
biminimal structure spaces.