Answer :
Countries such as Brazil, Myanmar, Kazakhstan etc would construct a new capital because of social, political, economical and historical reasons.
Construction of New Capital City
The Countries mentioned here have something common in their past, and that is they were being ruled by Colonial Powers. So these countries are supposed to have rules and administration influenced by their colonial masters. Hence, to make it clear in the minds of their citizens that they are living in free nation, it is important to change colonial things such as the Name of Capital or Shifting the Capital City, or to name things before their freedom fighters.
Apart from this historical reason, economical and geographical reasons can also explain why these countries would construct a new capital city in a different location from the old capital city.
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