A helically coiled tube enhances heat transfer rate due to development of secondary flows. Use of helical tube as heat exchanger will enhance heat transfer coefficient. Correlations available in the literature for calculating condensation heat transfer coefficient for straight tube are used to evaluate the performance of helically coiled tube-in-shell heat exchanger. Experiments were performed on helically coiled tube of 175 mm coil diameter. Measurements were taken in 10 steps at inlet rate of mass flow of steam. Mean value of the coefficient of heat transfer at inside surface of the tube for condensation was evaluated by experimental methods and results were compared with three correlations available in literature and the deviations are reported. A new empirical correlation is proposed which is based on the experimental investigations.