Any two phase flow where interface dynamics plays an important role requires the calculation of surface tension forces. Accurate computation of these forces continues to be one of the key challenges during two phase flow simulations especially under the Volume of Fluid (VOF) framework. Among the methods available for simulation of two phase flows with interface, VOF method is known to offer superior mass conservation. However, calculation of curvature and surface tension usig this method is known to suffer from inaccuracies. Inaccuracies arise during computation of urvature and inclusion of surface tension forces within the Navier Stokes solver. The present work is an attempt to address this by proposing novel approaches to computation of curvature under VOF framework. The recently proposed piecewise circular interface construction (PCIC) method is improved and adapted for accuarate computation of curvature. In addition taking advantage of the recent improvements in the height functions method, it is successfully integrated into the PCIC method to provide an option of consistent and accurate calculation of curvature. In addition curvature calculation methods have been integrated into a flow solver using a well balanced method to minimise parasitic currents. The seminar talk is intended to present and discuss important aspects of these new proposed methods.