Stone sculptures in the collection of the Government Museum, Mathura, India, carved out of a local sandstone in the early centuries of the Christian era, represent a golden age of Indian art. Several of them show advanced decay and were in need of immediate conservation treatment. This paper presents the research and treatment undertaken on these sculptures by the authors at Mathura. A table shows the results of analysis of weathered and unweathered samples. CMC paste successfully removed the <i>sindur</i> deposit. Soluble salts were removed, the separated layers were refixed with epoxy resin; the consolidation efforts with organo-silanes continue at the time of the writing of this paper.