The Satpura Range divides the Narmada valley from the Deccan Plateau to the south. The Central Provinces included the northeastern portion of the Deccan, drained by tributaries of the Godavari River including the Wainganga, Wardha, and Indravati. A portion of Berar lay in the upper basin of the Tapti River, which drains westward into the Arabian Sea. The portion of the Central Provinces on the Deccan Plateau formed the Vidarbha region, which includes Nagpur, the capital of the province.