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Abstract: An imprinted polymer capable of reducing the volume of active waste generated during decontaminations by selective sorption of cobalt under typical decontamination conditions has been discussed. The complexing reagents during decontamination are circulated through the system in solution form to bring out the corrosion products, and thereby release and trap the active ions. The polymer has been synthesized by polymerizing vinylbenzyl iminodiacetic acid complexed to cobaltous ions in presence of excess cross-linking agent such as ethylene glycol dimethacrylate. The imprinted polymer shows selectivity against Cr (III) and Ni (II) under complexing conditions and has been synthesized essentially with an objective of solving the problem of handling excess waste associated with the dilute chemical decontamination in PHWR. Molecularly- and metal ion-imprinted polymers has witnessed a significant growth especially in small scale analytical applications