The similar question has been asked by UPSC in 2016.
“What is the basis of regionalism? Is it that unequal distribution of benefits of development on regional basis eventually promotes regionalism? Substantiate your answer.”
Introduction should explain about regionalism in India and its changing nature with the changing manner of globalization and ever increasing push for inclusive growth.
Further, mention regionalism in its natural form in India.
Next, mention the changing nature. However, new regionalism has brought some positivity as well. Mention concerns related to new regionalism in India.