Parliament has following powers and functions:
(i) Legislative powers : Parliament makes laws in a country. It is the reason for calling them legislatures. Parliament can make new laws, change existing laws, or abolish existing laws and can make new ones in their place.
(ii) Executive powers:

Parliament exercises control over the executive i.e., Council of Ministers. The Council of Ministers in a parliamentary democracy is responsible to Parliament (Lok Sabha in India).
(iii) Financial powers: Parliament controls all the money that government has. It
passes budget every year. Public money can be spent only with the approval of the Parliament.
(iv) Highest forum of discussion: Parliament is the highest forum of discussion and
debate on public issues and national policy. Parliament can seek information about any matter.