Ground improvement using vibro stone columns is widely regarded as one of the most cost-effective solutions to treat weak soils. Stone columns help in reducing the settlement of structures built on soft clays, accelerate the rate of consolidation by reducing the length of the drainage path and increase the load-bearing capacity. Numerical analysis is generally used to simulate stone column behaviour as compared to experimental investigation. The present literature provides insight on various numerical approaches such as unit cell concept or axisymmetric model, plane strain model, homogenization technique using improved composite parameters and 3D modelling technique. The axisymmetric model or unit cell concept gives a reasonable estimate if the component of lateral displacement or squeezing is negligible. The plane strain model defines stone column as a continuous wall, which may not reflect realistic behaviour. In homogenization techniques, stone column-reinforced soil is treated as a composite material. The present study examines the performance of a 10 m high embankment resting on 13 m soft marine clay in the west coast of India. Results of the different numerical models were compared with the field data. The study focuses on the estimation of total improved settlements and rate of radial consolidation of improved ground.