Question

why manufacturing sector is a consider the backbone of development

Answer 1

Due to following reasons manufacturing sector is considered the backbone of economic development of the country
(i) Manufacturing industries help in modernising agriculture. For example, industries providing fertilisers machinery have given a major boost to agriculture by raising its productivity.
(ii) Industrial development is required for eradication of unemployment and poverty. An example is the establishment of industries in tribal and backward areas, which bring down regional disparities.
(iii) Countries that transform their raw materials into a wide variety of finished goods of higher value are prosperous. For example, USA.

Answer 2

The manufacturing sector is considered as the backbone of the economic development of the country because of the following reasons:

(i) Manufacturing sector helps in modernising agriculture which increases agricultural productivity.

(ii) Since a huge portion of India's population is dependent upon agricultural income, the manufacturing sector diminishes the heavy dependence of people on agriculture and provides jobs to a large number of people in the industrial as well as the service sectors.

(iii) It reduces poverty as well as unemployment from the country. The development of the manufacturing sector also aims to minimise regional disparities by setting up industries in tribal and backward regions of the country.