What is the difference between mahavir janma kalyanak and janma vachan?

In Jainism, both Mahavir Janma Kalyanak and Janma Vachan are significant terms associated with the life of Lord Mahavira, the 24th Tirthankara, but they refer to different events and rituals:

### Mahavir Janma Kalyanak
- Meaning: "Janma Kalyanak" means the auspicious event of birth. "Mahavir Janma Kalyanak" refers specifically to the celebration of Lord Mahavira's birth.
- Significance: It is one of the five major auspicious events (Kalyanaks) in a Tirthankara’s life and is celebrated annually by Jains as a major festival, usually in March or April (on the 13th day of the bright half of Chaitra month).
- Celebration: Includes rituals, processions, prayers, lectures on Mahavira’s teachings, and acts of charity. It commemorates the birth and virtues of Mahavira.

### Janma Vachan
- Meaning: "Janma Vachan" literally means "the narration of birth." In Jain tradition, it refers to the ritualistic recitation or narration of the events surrounding the birth of a Tirthankara, particularly Lord Mahavira.
- Significance: This ritual is performed during Mahavir Janma Kalyanak celebrations and other auspicious occasions. It involves the recitation of scriptures and stories describing the miraculous events at the time of Mahavira’s birth.
- Ritual: The Janma Vachan includes descriptions of the dreams of Queen Trishala (Mahavira’s mother), the birth, and the celestial celebrations that accompanied it. Sometimes it is dramatized or enacted as part of the festivities.

### In Summary
- Mahavir Janma Kalyanak is the festival/celebration of Mahavira's birth.
- Janma Vachan is the ritual narration or recitation of the story of his birth, often performed during the Janma Kalyanak celebrations.

Both are deeply intertwined, but one is the occasion itself, and the other is a ritual or practice performed during that occasion.