In Jain dharma, abhishek (a ritual pouring or bathing offered to a Tirthankar’s image or idol) is a devotional act and should be done with a pure mind and body. There are practical conditions under which it is advised not to perform abhishek:

• When purity cannot be maintained: If the person performing the abhishek is not in a state of cleanliness and calm, the act loses its spiritual value. In Jain practice, purity of body, speech, and mind is essential for devotional rites.
• During ritual impurity according to tradition: In some Jain communities, women who are in certain forms of ritual impurity (e.g., during specific phases of menstruation) are advised not to perform direct rites like abhishek or to touch the idol, depending on local custom and the guru’s guidance. There are differences between Digambar and Shwetambar practices on this point, so the exact rule can vary by tradition and temple.
• With improper intention or ego: If the abhishek is performed with pride, attachment to results, or to gain social recognition, its spiritual aim is defeated. The intention should be to show reverence and cultivate humility, not to display ritual mastery.
• During certain fasts or vows where specific rites are restricted: Some austere periods or vows prescribe refraining from particular puja activities. In such cases, abhishek may be temporarily suspended to honor the vow.

If you’re looking for precise, tradition-specific guidance, the best approach is to consult your local Jain teacher or the temple priest for the particular tradition you follow (Digambar or Shwetambar), since norms can differ between communities.

You can read more on related Jain devotional practices here