Answer

For Atthai Tap (8 days of fasting), the pachkhan is generally taken as:

“I take pachkhan for Atthai — to observe upvas for eight days, and to avoid all food and prohibited items according to Jain discipline, with awareness and purity.”

In practice, you should take the exact pachkhan from a Sadhu-Sadhvi Bhagwant, Guru Bhagwant, or a knowledgeable Pratikraman/Pachkhan expert, because the wording and rules may differ slightly by tradition and sangh.

Explanation

For Atthai, the pachkhan usually includes:

• Upvas for 8 days
• No solid food
• Following the decided rule about boiled water if permitted
• Observing Jain discipline carefully during the tap
• Avoiding harm, anger, pride, deceit, greed, gossip, and careless activities
• Doing more samayik, pratikraman, swadhyay, jaap, dhyan, and devotion

Many people take pachkhan daily, while some take it for the full duration depending on guidance from their Guru or local tradition.

Spiritual Understanding

Atthai is not only about not eating. In Jain Dharma, the deeper purpose is:

• To reduce attachment to the body
• To strengthen self-control
• To purify thoughts, speech, and actions
• To do nirjara of karmas through tapasya
• To remain in forgiveness, humility, and awareness

Takeaway

Take the Atthai pachkhan with devotion, but please confirm the exact wording and rules from your Guru Bhagwant or local Jain sangh, so it is done correctly according to your tradition.