Dr Sharma's researches over the years have been of industrial importance and concerned with chemical reactions and mass transfer characteristics of fluid-fluid contactors. He has carried out detailed studies on the kinetics of gas-liquid and liquid-liquid reactions where mass transfer is accompanied by chemical reaction, viz. oxidation of cuprous chloride, dithionite and aldehydes, absorption of isobutylene in aqueous sulphuric acid; alkylation of phenols with isobutylene; and reactions between carbon disulphide and aqueous amines; cyclohexanone and hydroxylamine sulphate. All these reactions are of industrial relevance. A simple method for studying the kinetics of fast reactions has been devised by him.