This type of farming is practiced in the areas where average rainfall is between 80cm to 200 cm which is insufficient for certain crops.
This system of farming can be practised only in those areas where availability of water from underground or surface water bodies like rivers, tanks, and lakes is sufficient throughout the year.
The other condition for this farming is the availability of levelled agricultural land.
The main areas were much farming is practised are in Punjab, Haryana, Uttar Pradesh, north western Tamil Nadu and the deltas of peninsular rivers.
The other important areas of irrigated farming are found in the Deccan Plateau region particularly in Maharashtra, Karnataka and Andhra Pradesh.
Wheat, Rice and Sugarcane are important crops of this farming.