Answer :
Answer: 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.