Vikram,

First off: Ophiolite and Craton - is not the right approach.

Ophiolite is a term applied for rock assemblages; its highly impossible to have the same rock assemblages throughout in the Cratonic scale. Craton is an old and stable part of the continental lithosphere, often survived cycles of merging and rifting of continents and are generally found in the interiors of tectonic plates

Moreover, the Dharwar Craton is structurally so very complex, there are no traces of Ophiolite preservation (even if it exists). For example, some authors have interpreted ultramafic-mafic units of certain greenstone belts as ophiolotes, but in Sargur they form layered complexes that clearly intrude the widespread pelitic shicts. Therefore, they are more akin to the well-known layered complexes seen in Archean basins like Witwatersrand.