All India Trinamool Congress is a regional political party based in West Bengal, while the other three are national parties with a presence in multiple states.

The primary function of a political party is to mobilize voters during elections and help them win seats in the legislature.

The Confederation of Indian Industry is an interest group representing the interests of businesses and industries in India.

The main objective of an interest group is to influence public policy in a way that benefits its members.

Interest groups use a variety of tactics to influence public policy, including lobbying, campaign contributions, and public relations.

The relationship between political parties and interest groups can be characterized by cooperation, conflict, and mutual benefit, depending on the specific circumstances.

Administering government programs is a function of the government, not political parties.

The primary source of funding for political parties in India is donations from individuals and corporations.

Interest groups are often criticized for being too powerful, not representative of the general public, and secretive.

Political parties play a vital role in a democracy by providing a means for citizens to participate in government, aggregating and articulating the interests of citizens, and recruiting and training candidates for office.

A no-party system is not a type of political party system, as it refers to a situation where political parties do not exist.

Interest groups perform a variety of functions, including representing the interests of their members, influencing public policy, and educating the public about important issues.

Direct action is not a common tactic used by interest groups to influence public policy, as it refers to actions such as protests and strikes, which are typically used by social movements.

The relationship between political parties and interest groups can be characterized by cooperation, conflict, and mutual benefit, depending on the specific circumstances.

Administering government programs is a function of the government, not political parties.