In Jainism, the phrase "Jay Jay Nanda Jay Jay Bhadda" is a respectful greeting or salutation that honors two of the chief female disciples (aryikas) of Lord Mahavira: Chandanbala (Nanda) and Sundari (Bhadda).

Meaning and Significance:

• Jay Jay: This means "Victory to" or "Glory to" in Sanskrit and Prakrit, and is a common way of offering praise or honor.
• Nanda (Chandanbala): She was a devoted female disciple of Lord Mahavira and is considered the first female ascetic in the current Jain tradition. Her story is significant in Jain literature, especially regarding forgiveness, compassion, and devotion.
• Bhadda (Sundari): She is another prominent chief female disciple of Lord Mahavira, known for her wisdom and leadership among Jain nuns.

Why do we say it?

• Respect to Female Acharyas: By reciting "Jay Jay Nanda Jay Jay Bhadda," Jains pay homage to these two revered women who played pivotal roles in the spread and sustenance of Jainism, especially among women.
• Recognition of Equality: Their mention highlights the importance and equality of women in Jain spiritual tradition.
• Inspiration: Their lives are seen as sources of inspiration for virtues such as renunciation, compassion, and spiritual discipline.

Where and When is it Used?

• This phrase is often used in Jain prayers, bhajans (devotional songs), and during religious gatherings, especially those involving the Jain nuns (aryikas or sadhvis).
• It is a way to start or end a discourse, seeking blessings and remembering the ideals set by these female ascetics.

Summary

Saying "Jay Jay Nanda Jay Jay Bhadda" is a traditional Jain way of offering respect and drawing inspiration from Chandanbala (Nanda) and Bhadda, the chief female disciples of Lord Mahavira, and acknowledging the vital role of women in the Jain religious order.