We report the formation of a ring like structure (donut shaped) in the flow of particular non-Newtonian liquids coating a rotating vertical disc. Experiments were performed with a known volume of the liquid and at varying rotation rates such that inertial and centrifugal effects were negligible. Liquid injected on to the rotating disc initially coats the surface uniformly, which then redistributes itself such that at steady state a significant amount collected into a circular ring, off center with the axis of rotation. The ring formation was not observed in the case of Newtonian liquids. These experiments motivated a study on the liquid of Newtonian viscous liquids on the same geometry. A lubrication analysis for Newtonian liquid resulted in a time evolution for the film thickness that accounted for gravity, surface tension and viscous forces. The predicted thickness profiles are in excellent quantitative agreement with those obtained experimentally for moderate volumes of silicone oil. Shear rate calculation for the Newtonian liquid suggests that the shear thinning nature of the non-Newtonian liquid may be the cause for the observed ring formation.