History of Aurangzib, Based on Original Sources v3.c41.s1.2

v3.c41.s1.2

The copious rainfall on the eastern Himalayas, descending in torrents, has carved many a river which cut up the plains north of the Brahmaputra into a number of valleys, each bounded by rivers on three sides and by the mountain on the fourth. The successive advances of the Assam kingdom have been westwards and its shrinkings eastwards, from one of these feeder rivers to the next. These rivers, —the Bharali, the Bar Nadi, the Monas and the Sankosh,—have been the boundary between the kingdom of Assam and its rivals, Kuch Bihar or Mughal India, in different ages. The south Brahmaputra valley is similarly furrowed by innumerable streams, but these have in general a western or markedly north-western inclination.