Geochemical and isotopic investigation of Proterozoic clastic chemical sedimentary rocks provide insights into surface conditions the early Earth. The mid-Proterozoic Vindhyan Basin central India, comprising ~5 km thick, mostly undeformed unmetamorphosed sediments, is one such archive which exposed in two sub-basins, Son Valley sub-basin east (SVV) Chambal west (CVV). Nd compositions siliciclas...