  The effect of dipole-dipole interaction, the initial relative phase and the
coupling strength with the cavity on the dynamics of three two level atoms in
the good and the bad cavity regime are investigated. It is found that the
presence of strong dipole-dipole interaction not only ensures avoiding
entanglement sudden death but also retains entanglement for long time. The
choice of the phase in the initial state is crucial to the operational regime
of the cavity. Under specific conditions, the entanglement can be frozen in
time to its initial values through strong dipole-dipole interaction. This trait
of tripartite entanglement may prove helpful in engineering multiparticle
entanglement for the practical realization of quantum technology.
