a river of Northern India, rising in the Himalayan province of Lahoul, in Lat. 32. 24. Long. 77. 11., at an elevation of 13,000 feet above the level of the sea. For the first 80 miles of its course the river takes a southerly direction to Mundi, whence turning westward it flows for the distance of 50 miles to Nadama. From this point it makes a wide sweep of 80 miles to the N.W., and, entering the plains of the Punjab, proceeds in a southerly direction to its confluence with the Sutlej; the whole length of its course being 290 miles. The Beyah is identical with the Hyphasis, which formed the limit of Alexander's expedition. Below its junction with the Sutlej the united streams bear the name of the Ghara.