Jambudvipa (the central continent) is divided into 7 kshetras (regions). These are the Bharata, Mahavideha, Airavat, Ramyaka, Hairanyavata, Haimavata, and Uttarkuru kshetras. This division is described in Jain cosmology as the common pattern for the central continent, with each kshetra separated by mountains and forming the overall circular layout around Mount Meru. ( jainpedia.org)
Note: Jain texts also describe other continents (dvipas) in the same cosmological framework, but the exact number of kshetras can vary by text and tradition. The central Jambu-dvipa is the best-attested case with seven kshetras. ( jainpedia.org)