Here are some good Jain-friendly baby boy names starting with “Cha” (च):

1. Chandraprabha / Chandraprabhu (चन्द्रप्रभ / चन्द्रप्रभु)

– 8th Tirthankar Bhagwan Chandraprabhu; “the one whose aura is like the moon”.

1. Chandrakant (चन्द्रकांत)

– “Beloved of the moon”; calm, cool, peaceful nature.

1. Chaitanya (चैतन्य)

– “Consciousness, pure soul-awareness”; reminds of आत्मा की चेतना.

1. Charitra (चरित्र)

– “Good conduct, character”; linked with साधु धर्म and शील.

1. Charit (चरित)

– “Pious deeds, noble acts”; one who does शुभ कर्म.

1. Charudatt (चारुदत्त)

– “Beautifully gifted, graciously endowed”; सुन्दर गुणों से युक्त.

1. Chakresh (चक्रेश)

– “Lord of the chakra (wheel)”; can remind of धर्मचक्र.

1. Champaklal (चम्पकलाल)

– “One who is like the fragrant champa flower”; purity and softness.

1. Chandresh (चन्द्रेश)

– “Lord of the moon”; symbol of शीतलता and शांति.

1. Chandrav (चन्द्रव)

– “Related to the moon / full of moon-like qualities”; शीतल व शांत स्वभाव.

All of these work well with common Jain surnames (Shah, Jain, Doshi, etc.) and are easy to call in daily life.