[Lal]

Some general comments:

1. A being in a given realm cannot adversely affect the mind of another in a higher realm. In fact, a deva cannot even see a brahma in any realm. A Brahma in a lower realm cannot even see one in a higher realm.
2. No being in any realm can deviate a Noble person (including a Sotapanna Anugami) from the Noble Path.
3. A sotapanna will attain the Arahanthood within 7 bhava. That means they will have to wait a MAXIMUM of 7 bhava. It could happen even within the same bhava or even the same jati, IF one happens to be lucky enough (or make an effort hard enough).
4. Devaputta Mara may be able to influence the mind of a Sotapanna to some degree. It is said that Mara was able to make Ven. Ananda’s mind agitated enough to forget to request the Buddha to live his full life (about 100 years). However, Devaputta Mara can never make any Noble Person (Ariya) to be deviated from the Path.
5. It is those who have not yet gotten to the Sotapanna Anugamai stage that need to be careful and be mindful. As long as one has faith in the Buddha, Dhamma, Sangha, NO ONE in any realm can make anyone deviate from the Path. But until one gets to the Sotapanna Anugami stage, one is vulnerable to such external influences (and of course to kilesa Mara or one’s own defilements too).