It looks like you’re asking about how to reply to a common Jain greeting. Here are the usual replies:

• If someone says “Jai Jinendra,” you reply “Jai Jinendra.”
• If someone says “Micchami Dukkadam” (for forgiveness, especially around Paryushan/Das Lakshan), you reply “Micchami Dukkadam,” or you may also say the forgiveness sutra “Khamemi Savve Jiva, Savve Jiva Khamantu Me.”

Note:

• Both Shwetambar and Digambar traditions commonly use “Jai Jinendra” as a greeting and “Micchami Dukkadam” during forgiveness; wording and timing may vary slightly by tradition and region.

If you meant a different phrase (your “Satha ma cho” is unclear as a Jain sutra), please share the exact Jain phrase or sutra text so I can give the precise, traditional reply.