Declension table of ?viṣṇudevatya

Neuter	Singular	Dual	Plural
Nominative	viṣṇudevatyam	viṣṇudevatye	viṣṇudevatyāni
Vocative	viṣṇudevatya	viṣṇudevatye	viṣṇudevatyāni
Accusative	viṣṇudevatyam	viṣṇudevatye	viṣṇudevatyāni
Instrumental	viṣṇudevatyena	viṣṇudevatyābhyām	viṣṇudevatyaiḥ
Dative	viṣṇudevatyāya	viṣṇudevatyābhyām	viṣṇudevatyebhyaḥ
Ablative	viṣṇudevatyāt	viṣṇudevatyābhyām	viṣṇudevatyebhyaḥ
Genitive	viṣṇudevatyasya	viṣṇudevatyayoḥ	viṣṇudevatyānām
Locative	viṣṇudevatye	viṣṇudevatyayoḥ	viṣṇudevatyeṣu

Compound viṣṇudevatya -

Adverb -viṣṇudevatyam -viṣṇudevatyāt