An isolated granulite terrain occurs within the linear zone of schists and amphibolites of the Proterozoic Delhi Supergroup, in the Aravalli mountain belt of NW India. The geochemistry of the pelitic granulites of such terrains suggests the arkosic to shaley nature of the protolith. These rocks are characterized by a high maturity index, low to intermediate Fe 2 O 3 + MgO values (5.78%), high LaSc (8.3), ThSc (4.0) and NiCo (1.4) ratios and, low TiZr intermediate Fe 2 O 3 + MgO values (5.78%), high La/Sc (8.3), Th/Sc (4.0) and Ni/Co (1.4) ratios and, low Ti/Zr (16), ScCr (0.16) and ScNi (0.16) ratios which imply a passive continental margin nature of the basin. The high K 2 O value (3.0%), high K 2 ONa 2 O ratio (1.96), LREE enrichment, flat HREE pattern, consistent negative Eu anomaly, high La c n Yb c n (10.6) and ThSc (4.0) ratios and low LaTh (2.4) ratio, low Ni (30 ppm) and Cr (47 ppm) contents, and uniform ZrHf ratio largely reflect continental provenance and probable Proterozoic age. These rocks also differ from Archaean granulites of the fold belt with regards to K 2 O and Th/U values and deformational history.