Answer

Apart from the Navkar Mantra, a very meaningful mantra for daily prāyaścitta and calming the mind is:

“Micchāmi Dukkaḍaṁ”

It means:

“May the wrong I have done be forgiven.”

Explanation

In Jain Dharma, Micchāmi Dukkaḍaṁ is deeply connected with repentance, forgiveness, and inner purification.

It is a short but powerful expression of:

• accepting one’s mistakes,
• seeking forgiveness,
• reducing ego,
• cleansing harsh thoughts, words, and actions,
• bringing peace to the mind.

You can do its jaap daily with humility and awareness:

“Micchāmi Dukkaḍaṁ, Micchāmi Dukkaḍaṁ, Micchāmi Dukkaḍaṁ…”

Spiritual Understanding

Prāyaścitta in Jain Dharma is not just saying sorry; it is an inner turning point. When you sincerely repeat Micchāmi Dukkaḍaṁ, you remind yourself:

• I do not want to continue mistakes.
• I want to reduce anger, pride, deceit, and greed.
• I want to become lighter within.
• I seek forgiveness from all living beings.

For calming the mind, this mantra is helpful because it softens guilt, anger, and emotional burden through forgiveness and humility.

Takeaway

If you want one simple daily mantra apart from Navkar for prāyaścitta and mental peace, chant:

“Micchāmi Dukkaḍaṁ”

with a sincere heart, calm breathing, and a feeling of forgiveness toward all living beings.