Fluid inclusions both in quartz of fuchsite quartzite and quartzite rocks from the Ghattihosahalli Schist Belt area were examined with microthermometric methods. The study focuses on analysis of primary and secondary fluid inclusions present in quartz hosted in the quartzites to explore the stress and temperature conditions at the time of formation of metasediment sequences of the study area. The results reveal the two-phase liquid-rich fluid inclusions that indicate that the intrusions of quartz veins in quartzites may have taken place between the temperature from 168.8°C to 256.3°C with an average of 205.55°C from a moderately saline fluid (1.49 to 10.2 wt. % NaCl equiv.). The final ice-melting temperatures ranges from - 7.8°C to -2.1°C which indicate that the aqueous fluids are mainly H2O-NaCl. From the study, it is found that the minimum pressure during the trapping of this fluid inclusion in quartzites were ranging between 1.15 to 2.12 kbar. The study supports epithermal nature of fluid inclusions. The characteristic of fluid inclusions along with lithological and structural peculiarities, nature of structural features may be helpful in understanding the nature of geological formation of quartzites in the study area.