Declension table of ?viṣṇuhṛdaya

Neuter	Singular	Dual	Plural
Nominative	viṣṇuhṛdayam	viṣṇuhṛdaye	viṣṇuhṛdayāni
Vocative	viṣṇuhṛdaya	viṣṇuhṛdaye	viṣṇuhṛdayāni
Accusative	viṣṇuhṛdayam	viṣṇuhṛdaye	viṣṇuhṛdayāni
Instrumental	viṣṇuhṛdayena	viṣṇuhṛdayābhyām	viṣṇuhṛdayaiḥ
Dative	viṣṇuhṛdayāya	viṣṇuhṛdayābhyām	viṣṇuhṛdayebhyaḥ
Ablative	viṣṇuhṛdayāt	viṣṇuhṛdayābhyām	viṣṇuhṛdayebhyaḥ
Genitive	viṣṇuhṛdayasya	viṣṇuhṛdayayoḥ	viṣṇuhṛdayānām
Locative	viṣṇuhṛdaye	viṣṇuhṛdayayoḥ	viṣṇuhṛdayeṣu

Compound viṣṇuhṛdaya -

Adverb -viṣṇuhṛdayam -viṣṇuhṛdayāt