A large-scale project for the development and use of a river and its surrounding valleys, usually for purposes like irrigation, water supply, and hydroelectric power.

नदी घाटी परियोजना

English Usage: The government allocated a significant budget for the new river valley project to combat droughts.

Hindi Usage: सरकार ने सूखे से निपटने के लिए नई नदी घाटी परियोजना के लिए महत्वपूर्ण बजट आवंटित किया।