The report presents the hydrologic soil classification of Dudhnai sub-basin based on regional information collected from various agencies supplemented by field and laboratory experiments on the soil samples collected from time to time. As required by various soil classification systems, soil properties together with other information have been studied and grouped into different classes as a reference base for future hydrological studies of the basin.

Soils are generally heterogeneous and anisotropic i.e., having unequal physical properties along different axes. This results in non-uniform field conditions. The soil properties at places undergo considerable changes with time. This calls for systematic monitoring of soil parameters for its effective management.

Isoresitivity of the basin has been mapped for the available electric sounding data, at a depth of five-meter and the results interpreted for water bearing stratum of shallow sub-surface. Soil water retention curves for different soil compositions have been analyzed from the results of bar pressure plate and interpreted for the soil water retention characteristics. Statistical methods are applied after selecting three descriptive variables from the soil parameters to study the clusters and their deviation.

The present work has a scope for further improvement through future investigations in the basin as a part of the long-term representative basin studies.

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