The Bharatiya Janata Party is a national party, while the other three are regional parties.

The Election Commission of India is responsible for conducting elections, delimiting constituencies, and registering political parties.

Regional parties face a number of challenges, including lack of financial resources, limited geographical reach, and competition from national parties.

Regional parties play a crucial role in the Indian political system by providing representation to regional interests, keeping the national parties in check, and promoting regional development.

The Election Commission ensures free and fair elections by setting up polling stations, providing voter ID cards, deploying security forces, and taking other necessary measures.

The Bharatiya Janata Party is a national party, while the other three are regional parties in Maharashtra.

The Telangana Rashtra Samithi is the regional party that is currently in power in the state of Telangana.

The Indian National Congress is a national party, while the other three are regional parties in Tamil Nadu.

The Yuvajana Sramika Rythu Congress Party is the regional party that is currently in power in the state of Andhra Pradesh.

The Bharatiya Janata Party is a national party, while the other three are regional parties in Karnataka.

The Communist Party of India (Marxist) is the regional party that is currently in power in the state of Kerala.

The Bharatiya Janata Party is a national party, while the other three are regional parties in West Bengal.

The Biju Janata Dal is the regional party that is currently in power in the state of Odisha.

The Bharatiya Janata Party is a national party, while the other three are regional parties in Bihar.

The Bharatiya Janata Party is the regional party that is currently in power in the state of Uttar Pradesh.