Cordierite gneisses of the Eastern Ghat Mobile Belt (EGMB), India, are significant for understanding high-temperature metamorphic processes and crustal evolution. Mineralogically, these rocks are characterized by the presence of Cordierite, Quartz, Feldspar, Biotite, Sillimanite, and Garnet, indicating granulite-facies metamorphism under high-temperature, low-pressure conditions. The presence of cordierite indicates that there was a lot of partial melting and mixing of rocks, which is important for understanding the geological events that happened during the Proterozoic era. Geochemically,...