In Jain tradition, the usual answer is:

No, during periods you should not go inside the Jain temple (derasar) or do formal pūjā.

What traditional Jain practice says

Especially in more orthodox Jain families:

• Women on periods generally do not:

- Enter the garbhagṛih / main temple - Touch idols, pañchāng pūjā samagri, religious books, or yantras - Do formal pūjā, abhiṣek, aarti, or take religious vows / vrats

This is based on the idea of ritual purity for worship, not that the woman herself is “bad” or “sinful.” Menstruation is seen as a natural bodily process, but any active discharge (blood, etc.) is treated as a state where one avoids direct participation in temple rituals.

A simple way to remember:

• Temple rituals, touching murtis, doing pūjā – avoid.
• Rest, keep calm, and resume normal worship after periods are over.

What you can do

Most Jain elders and teachers are comfortable with women during periods:

• Doing śuddh bhāv-bhakti from home (mentally remembering Tīrthankars)
• Listening quietly to pravachan or doing simple nām–smaraṇ (if your family tradition allows)

Practices can differ by sect (Śvetāmbara / Digambara), city, and family tradition, so:

• Follow your family and guru’s guidance.
• If in doubt on a yātrā or special day, you can stay outside the main temple hall and do silent bhakti from there, if your elders agree.

For a bit more detail on what is usually followed during periods in Jain homes, you can read here: