Note4Students
From UPSC perspective, the following things are important :
Prelims level: Traditional water harvesting systems in India
Why in the News?
With summers nearing, the arid and semi-arid regions of Rajasthan particularly in Churu, Jaisalmer, and Barmer districts largely rely on ‘Kundi’ system of traditional rainwater harvesting.
What is Kundi System?
- Found in Churu, Rajasthan, kundis (or kunds) are traditional rainwater harvesting structures designed for storing drinking water.
- A circular or rectangular pit, often lined with bricks or stones, is dug into the ground.
- Rainwater is collected through sloped catchments and funneled into the kundi for storage.
- A lid or stone slab covers the pit to prevent contamination and evaporation.
- These structures help communities survive in regions with scarce groundwater and unpredictable rainfall.
Other Traditional Water Harvesting Systems in India
| Khadin (Rajasthan) | Earthen embankment (bund) built across slopes to retain surface runoff for moisture conservation and groundwater recharge, used since the 15th century. |
| Johads (Rajasthan, Haryana) | Small crescent-shaped embankments that store rainwater, recharge groundwater, prevent runoff, and improve water availability. |
| Baolis / Stepwells (Rajasthan, Gujarat, Delhi, MP) | Deep stepwells with stairs leading to groundwater storage, used for drinking, irrigation, and bathing; famous examples include Rani ki Vav (UNESCO site) and Agrasen ki Baoli. |
| Virdas (Gujarat – Kutch region) | Shallow wells dug in depressions to separate fresh rainwater from saline groundwater, used by Maldhari pastoralists for drinking and livestock. |
| Tankas (Rajasthan, Gujarat) | Circular underground tanks built in homes and temples for storing rainwater; lined with lime for purification, found in Bikaner, Jaisalmer, and Dwarka. |
| Zabo (Nagaland) | Terraced ponds built on hill slopes to collect rainwater for drinking, irrigation, and livestock, preventing soil erosion and increasing groundwater recharge. |
| Kuls (Himachal Pradesh, Uttarakhand, J&K) | Small channels (kuls) diverting glacial meltwater to fields for irrigation, made of stones, wood, and mud, and managed by local communities. |
| Ahar-Pyne (Bihar, Jharkhand) | Ancient system from the Mauryan period, where reservoirs (Ahar) collect rainwater, and channels (Pyne) distribute it for paddy cultivation. |
| Eri (Tamil Nadu) | Interconnected chain of tanks developed during the Chola period for irrigation, groundwater recharge, and flood control, still supporting agriculture. |
| Surangam (Kerala, Karnataka) | Horizontal tunnels dug into hillsides to extract water from aquifers, similar to Iran’s Qanat system, common in Malabar and Kasargod. |
| Phad Irrigation (Maharashtra) | Community-managed canal irrigation system drawing water from rivers, used in drought-prone areas, managed by a village council (patkari system). |
PYQ:[2021] Which one of the following ancient towns is well-known for its elaborate system of water harvesting and management by building a series of dams and channelizing water into connected reservoirs? (a) Dholavira (b) Kalibangan (c) Rakhigarhi (d) Ropar |
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