In simple words, kautuka (also called raksha-sutra, mauli, raksha-potli etc.) is the sacred thread / small potli tied on the wrist during Jain (and Indian) rituals.

1. What is a kautuka in Jain practice?

• It is usually red or yellow thread, or a small cloth potli tied on the wrist.
• Inside the potli there may be:

- vaskshep / akshat (rice with kesar / chandan), - small beads or other auspicious things, - sometimes a small paper with mantras.

• It is abhimantrit – that means it is blessed with Jain mantras or by a sadhu/sadhvi or during a proper pooja.

In Jain tradition this is very commonly called “raksha potli”.

You can read more here

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2. Its main significance in Jain Dharma

(a) Symbol of protection – raksha-bhav

• While tying it, we keep the bhav:

“May I be protected from bad influences, fear and obstacles in my dharmic life.”

• Real protection in Jainism is not from the thread itself, but from:

- our own punya (merit), - samyak darshan (right faith), - samyak charitra (right conduct).

• The kautuka is only an outer symbol to remind us of this inner protection.

(b) Reminder of vows and discipline

Whenever we look at it on our wrist, it should remind us:

• I have taken some vrat / sankalp in this pooja or festival.
• I should control my mind, speech and body.
• I must avoid himsa, krodh, maan, maya, lobh etc.

So it works like a daily reminder of dharma.

(c) Sign of blessings and connection

• It also shows that we have taken part in a holy ritual and received blessings of Arihant, Siddha and Gurus.
• If tied by a sadhu/sadhvi, many people feel it as a physical sign of their blessings.

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3. When is kautuka / raksha-potli usually tied?

Different Jain families and sampradayas have slightly different customs, but commonly:

• After special poojas, anjanshalaka, havan, vidhi etc.
• During Parv (Paryushan, Das Lakshan, Ayambil Oli).
• In some places, during Jain weddings a protective thread is also tied.
• Sometimes sisters also tie a raksha thread to brothers with a Jain dharmic bhav.

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4. Digambar & Shwetambar angle

• Both Digambar and Shwetambar Jains use such raksha-sutra / potli in many rituals.
• The basic meaning is the same:

- symbol of raksha, - reminder of dharma and vows, - sign of punya and blessings.

• Exact mantras, method of tying, occasions may differ from one tradition / panth / gacch to another, but the Jain spiritual idea behind it is common.

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5. Important Jain view to remember

From pure Jain standpoint:

• The thread itself has no magical power.
• Its value depends on:

- our shraddha (faith), - our right understanding, - our own efforts to live by Jain principles.

• If we wear kautuka but continue himsa, asatya, aparigraha-violation, then the thread is only a piece of cloth.
• If we wear it with right bhav and walk on the path of ahimsa and self-control, then it becomes a beautiful helper in our spiritual life.

So, kautuka = outer thread, inner reminder of dharma and protection through our own right conduct.