Explanation:

- Option 1: Bahujan Samaj Party

- Founded by Kanshi Ram in 1984.

- Represented as a national party in India.

- Option 2: National Conference

- Primarily based in Jammu and Kashmir.

- Recognized as a state party, not a national one.

- Correct Answer: National Conference is NOT a national political party.

- Option 3: Bharatiya Janata Party

- One of the two major national parties in India.

- Ruling party at the central government under the National Democratic Alliance.

- Option 4: Nationalist Congress Party

- Founded by Sharad Pawar in 1999.

- Recognized as a national party in India.