Here are several respectful birthday wishes you can use for a Jain sadhviji. You can pick one as-is or tailor it with her name.

• Jai Jinendra. On your sacred birthday, may your auspicious path of ahimsa, tapas, and samyak darshan shine even brighter. Wishing you peace, health, and divine grace.

• Happy birthday to a noble sadhviji. May your life continue to inspire with compassion, renunciation, and unwavering devotion to the Jain Dharma. May all beings be well.

• On this auspicious birthday, may the blessings of Mahavira and the Jain saints bless you with inner serenity, clear vision, and compassionate service. Jai Jinendra.

• Prabhu’s blessings on your special day. May your days be filled with sanghatan, restraint, and the joy that comes from living truth and non-violence.

• Wishing you a serene and joyful birthday. May your penance and pious conduct be rewarded with spiritual progress and lasting peace for all beings.

• Dear sadhviji, may this birthday bring renewed strength in your vows, steadfastness in your practice, and boundless charity toward all living beings. Jai Jinendra.

If you’d like, tell me her name and any particular qualities you’d like highlighted, and I can craft a personalized birthday message.