If you mean how to respectfully greet or reply to a Jain sadhvi (mataji), use these simple, traditional forms:

• Namostu, Mataji.
• Vandāmi, Mataji.
• In Hindi/Devnagari: “नमोस्तु माताजी” or “वंदामि माताजी”.

Notes by tradition:

• Shwetāmbara: “Vandāmi, Mataji” or “Namostu, Mataji” are both appropriate.
• Digambara (to an Āryikā): “Namostu, Āryikā-śrī [name].”
• Terāpanth: “Jai Ho, Mataji” is commonly used for ascetics, though “Namostu” is always correct.

Between lay Jains, the standard greeting/reply is “Jai Jinendra.”

Keep hands folded, speak softly, and avoid casual greetings.