Upvaas pachchakhkhān procedure in Jain tradition is generally taken before starting the fast.

Simple procedure

1. Sit in a clean, शांत place

Be calm, with folded hands and pure intention.

1. Do samayik-minded preparation

Keep the mind focused on ahimsa, sanyam, and tyag.

1. Take pachchakhkhān before sunrise or before starting the fast

Usually the fast is taken with a Guru, Sādhviji/Sādhu, or by self-recitation if allowed in your tradition.

1. State clearly what you are observing

For Upvaas, say that you will not take: - food - water until the completion of the vow period

1. Keep the vow with vigilance

Avoid: - eating - drinking - unnecessary indulgence - anger, pride, deceit, greed

1. Parnāna / Parāṇā

After the fast is completed, take parāṇa according to the proper time and tradition, with awareness and gratitude.

Common intention in the vow

The inner भाव should be:

• “I am taking this upvaas for purification of karma, self-control, and spiritual upliftment.”

Important note

In Jain tradition, pachchakhkhān is not only a formal sentence — it is a firm inner resolution with full awareness.

If you want, I can also give you:

• Upvaas pachchakhkhān in Gujarati
• Upvaas pachchakhkhān in Sanskritized Jain form
• One-day / ekāsana / beyasana comparison