Supremacy of the constitution which states in article 7 of the constitution.

 2) Democracy which states in the preamble.

3) Republican government which states in the article 1 of the constitution.

4) Independence of judiciary which states in article 22 of the constitution.

 5) Unitary state which is mentioned in article 1 of the constitution.

 6) Separation of powers which is mentioned in article 22 of the constitution.

7) Fundamental rights which is mentioned in from Article 26 to 47A of the constitution