3. Nepal Himalayas lying between the Kali & the Teesta
river.
4. Assam Himalayas lying between the Teesta and the
Dihang river!
The Northern Plain
The northern plain has been formed by the interplay
of the three major river systems namely - the
Indies, the Granga and the Brahmaputra along
with their tributaries.
This plain is formed of alluvial soil.
• It spreads over an area
.
of 7 lakh sq. km.
The plain being about 2400 km long and 240 to 320 km
broad, is a densely populated physiographic
division.
• In the lower course, due to gentle slope, the velocity
of the river decreases, which results in the
formation of riverine islands.
Division of Northon plains
The Northern plains
are
broadly divided into three