The coalfields are the major industrial setups in any of the developing country. The studies have revealed that these setups are frequently reported with the groundwater contaminations, especially in concern to heavy metals. The cases of bioaccumulation of heavy metals have also been evidenced in the same setup with sufficient validation. This clearly implies towards the certain kind of association between the groundwater chemistry and the bioaccumulation. The present article evaluates and reviews the association between the hydro-geochemistry and the bioaccumulation in special concern to the coal fields. The hydro-geochemistry in the coalfield clearly elucidates the chemistry of groundwater and too in special reference to the heavy metals