Water storage structures play a critical role worldwide in meeting the escalating demands of growing populations. In India, ensuring the safety and functionality of such structures prompted the revision of the Concrete Structures for Retaining Aqueous Liquids code to IS3370:2021. This updated code embraces a comprehensive limit state method, introducing notable modifications such as heightened reinforcement criteria, detailed spacing specifications, inclusion of water tightness classifications, and further restrictions on crack-width. This study focuses on the design of an Intze water tank using IS3370:2021, alongside IS1893-Part-1 and IS1893 Part-II, with particular attention to ductile detailing outlined in IS13920-2016. A comparative analysis of ductile detailing between IS13920–1993 and IS13920-2016 is elaborated. Despite the recent enhancements in Indian standards, scant research exists on the disparity in ductile detailing design between IS13920-1993 and IS13920-2016. This study aims to fill this gap by examining the implications of the new design clauses and their impact on structural economy.