NERBUDDA, or NARBADA, a sacred river of India; has its source in the Amarkantak plateau of the Deccan, and flows westward, a rapid body of greenish-blue water, through the great valley between the Vindhya and Satpura Mountains, reaching the Gulf of Cambay after a course of 800 m., the last 30 of which are navigable.

The extreme length of the western maritime vale of India, from Cambay to Cape Comorin, exceeds 250 Portuguese leagues.