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To save energy, catalytic coating technology for cathodes of Membrane Cells for the Production of Caustic Soda and Chlorine has been developed. The cathodes consisting of Nickel or Nickel plated Stainless Steel are activated by a coating of Nickel and stabilised by a mixture of precious metals or their oxides. The coating is imparted by the Thermal decomposition technique. If the entire chlor-alkali membrane cells in India are provided with this coating Rs. 60 crore could be saved on foreign exchange for every 5 year and an energy saving of 3600 million kwh.