Lok Sabha is the lower house of the Indian parliament and plays a crucial role in the Indian polity. Some of its key functions are:

• Legislative Function: It is responsible for debating and passing laws in India. All bills (proposals for laws) have to be passed by the Lok Sabha before they can become acts.
• Financial Function: It has to approve all bills related to government finances, including the Union Budget. It can also initiate money bills (bills that deal with financial matters) and has the power to tax and spend money.
• Oversight Function: It has the authority to oversee the functioning of the government and its agencies. It can hold discussions, debates, and question various ministers and bureaucrats regarding their work and actions.
• Election Function: It plays a prominent role in electing the President and Vice-President of India. It also elects its own Speaker and Deputy Speaker.
• Representation Function: It is responsible for representing the views and concerns of the people of India. It represents the various states and territories within the country and ensures that their interests are heard and addressed.

Overall, the Lok Sabha is a critical institution in the Indian polity and plays a significant role in shaping the country's future.