Bhāgavatāpachāram — Offence Against Devotees
Bhāgavatāpachāram (bhāgavata + apachāra — offence against a devotee) is the gravest category of transgression in Śrī Vaiṣṇava ethics. Piḷḷai Lōkāchārya states in Śrī Vacana Bhūṣaṇam that while Bhagavān can forgive offences directed at himself, he cannot easily overlook injuries done to his devotees — because his devotees are dearer to him than his own self.
An apachāram (offence) includes disrespect, slander, disregard, or causing harm to a bhāgavata — even unknowingly. The tradition cites the examples of those who insulted Nammāzhvār or other Āzhvārs and suffered the consequences of such transgressions.
In Yathīndra Pravaṇa Prabhāvam, Māmunigaḷ's life is shown as a counter-model: his profound reverence for all bhāgavatas, regardless of their social position, was itself a teaching against any possible bhāgavatāpachāram. The Śrī Vaiṣṇava community is thus enjoined to treat every devotee with utmost respect.