Reflectivity setup at Indus-1 beamline BL-4 was originally designed to measure reflectivity of linearly polarized SR beam which falls on sample surface with electric filed vector parallel to the surface (this is called s-polarization geometry). In this geometry the SR beams gets reflected in a vertical plane. This geometry was in use since last many years. For in-house research program and to cater the Indus users it was planned to modify the reflectivity setup for p-polarization geometry where the SR beam will fall on a sample surface with electric field vector perpendicular to it. In this geometry the beam will get reflected in the horizontal plane. A suitable platform has been fabricated and necessary modifications has been carried out in the experimental station. The modified setup has been installed. The new setup will be useful for many research problems. The molecular orientation in complex organic thin film can be measured by analyzing the difference in reflectivity of s and p geometry. Apart from this the p-geometry finds application for plasmonic excitation study in soft x-ray/VUV region which strongly depends on electric field vector of incident beam. The p-geometry is also useful for in-house multilayer research program where the polarization characteristics of the multilayer can be determined.