The main function of opposition is helping the present government to think about the alternative ways. They try to show of and implement their ideas, programmes and policies through motions, resolutions and bills in the legislature to define alternative ways for government.

The opposition’s parliamentary role is to criticize government actions in the House of Commons, in committees and in the media. They ensure that all elected voices are heard in debates; as well as in the drafting of bills, so that they may be as effective as possible when they become law. (See Act (Statute).)

The Role of the Opposition The Opposition's main role is to question the government of the day and hold them accountable. Opportunities for scrutinising the policies and administration of the Government are provided in Question Time, the Address- in-Reply debate, Budget debates, debates on legislation, notices of motion and No Confidence Motions.

In legislature the Opposition Party has a major role, which is: Constructive criticism of government. Putting restriction on arbitrariness of ruling party. Safeguarding liberty and right of people. Preparation to form government. Expression of public opinion.