Yes, Kerala practises below sea level farming, particularly in the Kuttanad region, where the Kuttanad Below-Sea-level Farming System (KBSFS) stands out as a unique agricultural method. Spanning approximately 50,000 hectares of reclaimed delta swamps, these rice fields, known locally as Puncha Vayals, are categorized into three types: Karapadam (upland rice fields), Kayal (wetland rice fields) and Kari (land with black, coal-like soil).
Developed nearly 150 years ago by the ingenious farmers of Kuttanad, this technique is a testament to their mastery of below-sea-level cultivation. The system not only supports large-scale rice production but also integrates fish cultivation, thus providing a sustainable livelihood for local communities. Additionally, it plays a vital role in conserving biodiversity and maintaining ecological balance, making it a remarkable example of traditional farming aligned with environmental sustainability.