The given statement is justified because
(i) Industrialisation causes growth in available factory jobs. Thus, as employment rate increases it pulls people from various places and leads urbanisation.
(ii) People start moving towards cities for jobs and they gradually develop into urban centres. Sometimes industries are located in or near cities.
(iii) Cities provide markets and also provide services such as banking, insurance, transport, labour, consultants and financial advice, etc to the industry.
Thus, it can be concluded that industrialisation and unbanisation go hand in hand.