Tungstocobalate, (CoIIIW12O40)5-, intercalated ZnAl-layered double hydroxide (ZnAl-CoW12) was prepared via rehydration of calcined ZnAl-LDH under nitrogen atmosphere. Characterization by chemical analysis together with powder XRD, FT-IR, TG-DTA and UV-VIS DRS provided evidence of intercalation of CoIIIW12O405- (58 wt. %) in the interlayer of LDH. The catalytic activity of ZnAl-CoW12 was evaluated for hydrogen peroxide mediated decolourisarion of methyl orange and oxidation of benzaldehyde to benzoic acid under varying reaction conditions. ZnAl-CoW12 was found effective for both the reactions and stable under the experimental conditions for repetitive use without any noticeable decrease in activity.