A bidirectional module for activation of gene expression and regulation of
transcription in both directions is disclosed. The bidirectional module
comprises multiple cis regulatory DNA sequence elements, strategically
arranged to give a `Transcription Activating Module` that achieves high
level expression from a `Transcription Initiation Module`. The latter
functions like a minimal promoter. The former activates transcription
simultaneously in both the directions from the latter and also responds
to several transcription inducing, external stimuli in both the
directions. Since it is an artificially designed bidirectional
transcription module, it has no equivalent DNA sequence in plant genome.
This reduces the chances of the genes from being silenced by homology
based mechanisms. A bidirectional promoter module as this, can therefore
be used to develop efficient vectors for genetic engineering in plants.