Define infrastructure.
Infrastructure may be defined as those elements of economic and social changes which serve as a support system to all production activities in the economy.
Why do some states in India are performing much better than other states in certain areas?
Because these states have better infrastructures in the areas they excel than other states of India.
Define social infrastructure.
Social infrastructure may be defined as those elements of social change (like schools,colleges, hospitals etc.) which serve as a support system for the process of social development of a country.
Why do cities like Bengaluru in Karnataka attract many companies?
Because they provide world class facilities.