Differentiate between Minor, Medium and Major Irrigation Schemes. Bring out their relative importance.

Hint: Major irrigation schemes are those schemes which have a Cultural Command Areas of More than 10,000 hectares. The Medium Irrigation Schemes have a CCA of 2,000-10,000 hectares. Minor Schemes: Those with Culturable command areas up to 2000 hectares.
Relative Importance: Minor irrigation schemes are environment friendly and provide gainful employment opportunities to the rural population, resulting in optimum utilization of resources. Major/ medium schemes and CAD projects form the backbone of the country’s water and agricultural economy.    Their contribution to national food security is vital and hence sustainable improvement in their utilization and management is critical for national water security.