Ancient History question: Kalibangan is especially famous for which feature?

The original question-specific evidence states: Kalibangan is especially known for ploughed field. Ploughed field is the correct answer to “Kalibangan is especially famous for which feature”. This evidence connects the required Ancient History fact with its archaeological, geographical, cultural or chronological setting. The choices Western boundary site, Small but prosperous site and Advanced water management system 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. 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 Ploughed field 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.