Answer

If someone says “Sata mah cho?” you can reply:

“Haan, Sata mah chu.” meaning: “Yes, I am in peace / well.”

You can also say:

• “Jai Jinendra, Sata mah chu.”
• “Prabhu krupa thi Sata mah chu.”
• “Tame pan Sata mah raho.”

Explanation

In Jain Gujarati usage, “Sata mah cho?” is a respectful way of asking, “Are you well / in peace?”

A good Jain-style reply is peaceful, humble, and respectful.

Takeaway

A simple and proper reply is:

“Jai Jinendra, Sata mah chu. Tame pan Sata mah raho.”