Question

What is a constitution? What are it's functions?

Answer 1

Functions
Constitution :A book or set of rules according to which country has to be ruled or governed by government.

Answer 2

A Constitution is a Supreme Law of the state/country which lays out the procedure for the establishment of legislations (i. e. Laws) and administration of the State/Country. It is the bed rock of the Government in a country.

FUNCTIONS :

1. It projects the form of government in the country.  
2. It ensures the fundamental rights to it's citizens.
3. It directs the states in making legislations.
4. It lay out the procedures for several functions, administrations, legislation, execution of the government machinaries.
5. It provides for the separation of Powers.
6. It provides for the independence of each organ say., Legislative, Executive and Judiciary.
7. It upholds the sovereignty of the nation. \
8. It acts as a check in maladministration and misuse of powers.
9. It provides for answerability and accountability of government to the people of the country.
10. It provides for Judicial review in case of legislations violating the Supreme procedure established by law (i. e. Constitution)