Plateau regions in India do not support agriculture as much as the plain regions because:
a.The plains are most suitable for human occupation as they have fertile lands that are drained by rivers. For example,The Ganga- Brahmaputra basin is made up of the plains of Ganga and Brahmaputra, foothills of the Himalayas and the Suburbans delta.
b. Large part of agricultural activity is done on the fertile plains.A plain is a low lying land surface with leveled land.
c.A plateau on the other hand is a highland with a flat top itrises abruptly to the surrounding area .
d. They are mainly rich in mineral deposits for example , chotanagpur plateau.
e. Deccan plateau for instance has many farming areas that are covered by thin, light-textured soils that suffer quickly from drought.