  We discuss the phenomenology of $(1,1)$-mode adjoint scalars in the framework
of two Universal Extra Dimensions. The Kaluza-Klein (KK) towers of these
adjoint scalars arise in the 4-dimensional effective theory from the 6th
component of the gauge fields after compactification. Adjoint scalars can have
KK-number conserving as well as KK-number violating interactions. We calculate
the KK-number violating operators involving these scalars and two Standard
Model fields. Decay widths of these scalars into different channels have been
estimated. We have also briefly discussed pair-production and single production
of such scalars at the Large Hadron Collider.
