उत्तर : 1. "सिन्ध"
व्याख्या :

This city, about four thousand years old, situated on the banks of the Indus River in Sindh province of Pakistan, was discovered only 100 years ago. It was a major city of the Indus Valley Civilization, one of the world's oldest civilizations. Mohenjodaro means 'mound of the dead'.