Besides other parameters, measurements are also planned for differential cross section at Large Hadron Collider (LHC). Shrinkage of the diffraction peak and dip structure in the differential cross section are amongst the agenda of measurements at TOTEM Experiment. Many theoretical models predict multiple dip structure at LHC energy. We briefly review the status of shrinkage phenomena and possibility or otherwise of a multiple dip structure in the light of Geometrical models. A comparison has been made with the predictions of other models. We have also undertaken the role of rho (ρ) in the appearance or otherwise of multiple structure. In order to have a better understanding of the evolution of dip structure, we will also include the measurements from PP2PP at RHIC.
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