The verified response to “Ancient History question: Dholavira is especially famous for which feature?” is Advanced water management system, option C. The original question-specific evidence states: Dholavira is especially known for advanced water management system. Advanced water management system is the correct answer to “Dholavira is especially famous for which feature”. This evidence connects the required Ancient History fact with its archaeological, geographical, cultural or chronological setting. Harappan evidence must be interpreted from excavated settlements, artefacts, environmental data and comparisons among sites; a single object should not automatically support a wider claim than the evidence permits. The choices Dockyard, Largest Harappan site in India and Port and trade centre do not satisfy the same combination of site, feature, river region, crop, craft, discovery, chronology or cultural association. A distractor may be historically important in another context but still be wrong for the relationship asked here. The attribution is presented as an exam-oriented historical identification and should be read within the archaeological context stated in the question. A reliable check begins by identifying the question type: location, site feature, archaeological find, economic activity, urban planning, chronology or interpretation. Then compare the chosen answer with the relevant NCERT theme and reject options belonging to another site or category. Replaying that method confirms Advanced water management system as the keyed response for this Ancient History question. This evidence-led approach strengthens factual recall, chronological caution and option elimination for SSC, Railway, Banking, Defence, State and other competitive examinations.