The state has extensive pokkali and kaipad fields which remain idle due to intrusion of saline water making it unsuitable for agriculture. These fields are extensively seen in Alappuzha, Ernakulam, Kottayam, Thrissur and Kannur districts. Shrimp culture can be practised in these areas with slight modifications to the bundh. The method provides sustainable use of resource by efficient recycling of nutrients for both the paddy and shrimp. Apart from this it provides an additional income for the farmers. The minimum area for One paddy one fish farming will be 100 cents.

The unit cost for shrimp culture in these fields is Rs.0.3 lakh/ha which includes the cost of the seed @ Rs.60/100 nos. There will be a grant @ 40% of the seed cost.