Detailed Solution:
The correct answer is “Badua”.
List of major canals and dams in Uttar Pradesh · 1. Upper · 2. Central Ganges or Ganga Canal · 3. Lower Ganges or Ganga Canal · 4. Ramganga Canal.
Badua Dam is located in Banka district of Bihar. It is built on Badua river. Its length is 457.32 meters.