In Jainism, the Logassa Sutra (also known as Logassa Ujjuyara or Logassa Ujjoyagare Vannao) is a significant Prakrit prayer that pays homage to the Arihants (enlightened beings). The full Logassa stanza contains verses that enumerate the qualities and virtues of the Arihants and express reverence towards them.

The practice of chanting Logassa till "Chandesu nimalayara" is based on traditional ritual and scriptural recommendations. The phrase "Chandesu nimalayara" marks the conclusion of a specific section of the Logassa that lists the qualities of the Arihants. This partial recitation is often used during certain rituals, daily prayers, or when time is limited, as it is considered sufficient to convey respect and devotion to the Arihants.

Reasons for chanting till "Chandesu nimalayara":

• Traditional Practice: Jain rituals sometimes prescribe chanting only a portion of larger prayers for brevity or specific ritualistic purposes.
• Completion of Key Qualities: The section up to "Chandesu nimalayara" succinctly covers the essential qualities of the Arihants, making it a meaningful and complete invocation for many daily practices.
• Scriptural Guidance: Some Jain texts and prayer books mention this as an accepted and meritorious way to recite the Logassa in specific contexts.

However, in certain ceremonies or on special occasions, the entire Logassa Sutra might be recited.

Summary: The Logassa is chanted till "Chandesu nimalayara" based on ritual tradition, as this segment sufficiently encapsulates the core reverence towards the Arihants and fulfills the purpose of the prayer in daily or specific Jain practices.