Amphiolites are frequently observed in the medium to high grade metamorphic rocks of Kirimal (district Bhilwara, Rajasthan) of Proterozoic age. These amphibolites contain hornblende– plagioclase–garnet–clinopyroxene-epidote–iron oxide. Geochemically, these ortho-amphibolites are tholeiitic and show association with non-orogenic environment with a shift to subalkaline derivatives with progressive ... [Show full abstract] differentiation. The absence of Nb anomaly and a low Th/La ratio of amphibolites, indicate an asthenospheric mantle source without any supra subduction imprint or crustal contamination. Geochemical characteristics indicate that the parent magma for these rocks was highly evolved in nature. This paper records the geochemical characters and a probable origin of these amphibolites.