What part of the constitution explains what it does and the purpose

Preamble

Explanation:

A preamble is a first part of the constitution of every country. It is the main part of the federal and Indian constitution. It includes the purpose, philosophy and idea behind creation of a preamble.  It includes the history behind development and date of implementation of the constitution. It explains the principle and signification of those principles for a country where the constitution have been applied. Indian preamble includes justice, liberty, fraternity, and equality which are necessary for maintaining equality among all citizens.

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answer; the candidate for vice president;