Which of the listed pairings accurately matches a major religious celebration with its corresponding faith tradition?

The correct option is Buddha Purnima - Buddhism.

Step-by-Step Explanation:
To identify the accurate pairing, let us evaluate each of the given options by examining the faith tradition associated with each major religious festival:

1. Buddha Purnima - Buddhism (Correct Pairing):
Buddha Purnima, also known as Vesak, is one of the most sacred festivals in Buddhism. It commemorates three significant milestones in the life of Gautama Buddha (the founder of Buddhism): his birth, his attainment of enlightenment (Nirvana), and his departure from the physical world (Parinirvana).

2. Mahavir Jayanti - Hinduism (Incorrect Pairing):
Mahavir Jayanti is a major religious festival celebrated in Jainism, not Hinduism. It marks the birth anniversary of Lord Mahavira, who was the 24th and final Tirthankara of Jainism.

3. Navroz - Christianity (Incorrect Pairing):
Navroz (or Nowruz) is the traditional Persian New Year marking the spring equinox. It has deep historical roots in Zoroastrianism and is celebrated by various cultural and religious groups in Iran, Central Asia, and South Asia, rather than Christianity.

4. Vaisakhi - Islam (Incorrect Pairing):
Vaisakhi (or Baisakhi) is a major religious festival in Sikhism, commemorating the creation of the Khalsa Panth by Guru Gobind Singh Ji in 1699. It also serves as a traditional spring harvest festival in northern India, primarily in Hinduism and Sikhism, not Islam.

Hence, the only accurately matched pair listed is Buddha Purnima - Buddhism.