Canal irrigation and groundwater are often used together. A canal may reduce pumping pressure or replenish local aquifers; a failed canal season may increase well demand. Overdraft and water quality then become governance concerns. This interaction matters in Rayalaseema and coastal agriculture but varies by aquifer and year.

Do not equate a project command area with groundwater recharge area. A well-based crop may be physically near a canal without receiving canal water. The source for precise groundwater status is a dated survey, not a dam brochure.

Worked example: Groundwater pumping and surface-canal water can be managed together, a practice called conjunctive use. A command area may also have wells, and a dryland district may contain pockets of canal service. Overpumping can lower water levels even where a reservoir exists elsewhere in the basin. An MCQ that contrasts 'irrigated' with 'groundwater-dependent' as mutually exclusive may therefore be misleading; read the question's time and place carefully.

Active recall: Locate the named river or project on the relevant map, name its function, and state which facts need a dated source.