Could you please clarify what you mean by “Jain chou”?

Do you mean one of these?

• Jain Chaturmas — the four-month rainy-season period for sadhus and sadhvis
• Jain Chovihar — not eating/drinking after sunset
• Jain Chaudas — the 14th tithi, often observed with pratikraman/uposath
• Jain Chaturdashi or another Jain festival/vrat

Please type the full word or a little more context, and I’ll answer accurately.