The prevailing version of IS 1343 (1980) needs improvement with respect to the procedure for estimating the ultimate moment capacity of prestressed concrete (PSC) sections. There is a lack of clarity in the specified typical stress-strain curves for two different types of tendons specified in the code especially with regard to the manner in which the specified partial safety factor has to be applied. The code also suggests a simplified method in Appendix B, as an alternative to more rigorous strain compatibility method for estimating the ultimate moment capacity. However, it is seen that the IS 1343 simplified procedure invariably fails to satisfy the condition of force equilibrium and also overestimates the moment capacity. These shortcomings in the code are examined and reviewed in this paper, and suitable modifications are proposed in the form of modified stress-strain curves and simplified tables for incorporation in the forthcoming revision of the code.