📙 Advanced nano composites having light weight, highly thermally stable and easily processable are the demand of modern technology era. The problem keeping in mind, an advanced material, organic-inorganic nano-composite cation-exchanger, for preparation, physico-chemical characterization and their applications has been discussed as compilation work in the form of a book. We discussed some polymeric-inorganic cation exchanger having metal with phosphate group. The main objective of our proposed work was to synthesize advance class organic-inorganic hybrid materials and make it suitable to apply in electronics and analytical techniques.