New technology and techniques in agriculture paved the way for change. As surplus of cheap agriculture labour led to serve unemployment and rising poverty in many rural areas. As a result, many people left the countryside to find work in towns and cities. So the scene was set for a large scale labour intensive factory system. It led to urbanization.
In India during colonial rule, the British exported all the raw material to Britain. They did not establish or develop any industry here. They did not encourage the agriculture. They imported the finished goods. Both the agriculture and cottage industries were disturbed. As the agriculture is the backbone of India, the dependants suffered a lot. The dependants on agriculture became cheap labour.