Guntur's district profile lists Nagarjuna Sagar Project among its two major irrigation sources, and Krishna district's irrigation-circle page discusses its canal reach. The dam is on the Krishna river, upstream of the delta. Large storage and canal distribution connect reservoir operations to fields across administrative lines. A right or left canal name tells which bank it initially follows, not that every beneficiary must be in a district with that name.

Do not confuse Nagarjuna Sagar with the nearby Buddhist heritage name Nagarjunakonda, or with Srisailam upstream. Both Srisailam and Nagarjuna Sagar are on the Krishna system, while Polavaram is Godavari. The project may have power and water-management roles beyond crop irrigation, but a crop question should state the irrigation link precisely. Command figures need the dated source and unit; this book tests river and general function rather than floating ayacut numbers.

Worked example: Nagarjuna Sagar is a major Krishna storage and canal project. The reservoir's location and canal reach extend across administrative areas, so a single map dot cannot show the full command. A question on storage capacity needs a dated official project record and unit; a simpler exam item may only ask the river-project match. Keep those evidentiary levels separate.

Active recall: Place Srisailam, Nagarjuna Sagar and the Krishna delta in a downstream conceptual sequence.