This island is twice the area of Shak dweepa. There are seven prominent mountain ranges in this island which are known as ‘Kula Parvatas’— Kumud, Unnat, Drona, Kank, Isha, Mahish and Mandar. There are seven prominent rivers flowing through the various parts of this island– Pratoya, Shiva, Chitra, Chandra, Vidyullta, Varna and Mahati. This island has got its name from Kusha grass which are found in abundance in its central part.