Answer

A Jain home mandir usually has:

• An idol or picture of Lord Mahavir Swami or other Tirthankars
• The Navkar Mantra written or displayed
• A small asan/peeth for the idol
• A lamp or diya
• A chaurji or peacock-feather whisk, if used in your tradition
• Clean, simple पूजा items like water for abhishek if your family follows that practice
• A prayer book or stotra book

A bell is optional. It is not necessary in a Jain mandir.

About Ganesha: in many Jain homes people keep Ganesha because of family or local custom, but a Jain mandir is primarily for Tirthankars, not for deity worship in the same way as other traditions.

Explanation

In Jain Dharma, the mandir is kept simple, pure, and peaceful. The main focus is:

• Vitarag devotion
• Remembrance of the Tirthankars
• Chanting of Navkar Mantra
• Inner purification

So the most important thing is not how many items are there, but whether the space feels clean, शांत, and devotional.

Spiritual Understanding

A Jain home mandir should remind us of:

• Ahimsa
• Aparigraha
• Self-discipline
• Inner stillness
• Respect for the path shown by Mahavir Swami

Even a very small mandir is enough if it supports sincere bhakti and purity of mind.

Takeaway

For a Jain home mandir, keep it simple: Mahavir Swami or other Tirthankar image, Navkar Mantra, lamp, and clean prayer items. A bell is optional, and Ganesha is generally not essential in a Jain mandir.