The high pressure study of topological materials under pressure is a puzzling but trending topic of investigation. Here, we report angle dispersive X-Ray diffraction (ADXRD) experiments of Sb_1.9Fe_0.1S_0.15Te_2.85. We have observed an electronic  topological transition (ETT) along with three pressure-induced distinct structural phase transitions. The c/a anomaly provides  the signature of ETT at ~2.5 GPa.