Political parties are essential groups that contest elections and hold government power, representing the collective interests of society. They play crucial roles in governance, law-making, shaping public opinion, and providing access to welfare schemes, while diverse party systems (one-party, two-party, multi-party) vary in their structure and voter choices. Challenges such as lack of internal democracy, dynastic successions, and influence of money necessitate reforms, including regulations on party internal affairs and ensuring representation for women.