Khadins are used in Rajasthan to :
(a) hold water for irrigation
(b) recharge groundwater
(c) promote soil erosion
(d) trap wild animals
(b) recharge groundwater
A khadin, also called a dhora, is an ingenious construction designed to harvest surface runoff water for agriculture. Its main feature is a very long (100-300 m) earthen embankment built across the lower hill slopes lying below gravelly uplands. Sluices and spillways allow excess water to drain off. The khadin system is based on the principle of harvesting rainwater on farmland and subsequent use of this water-saturated land for crop production.
Khadins are used in Rajasthan to conserve water.