Declension table of hṛdaya

Masculine	Singular	Dual	Plural
Nominative	hṛdayaḥ	hṛdayau	hṛdayāḥ
Vocative	hṛdaya	hṛdayau	hṛdayāḥ
Accusative	hṛdayam	hṛdayau	hṛdayān
Instrumental	hṛdayena	hṛdayābhyām	hṛdayaiḥ hṛdayebhiḥ
Dative	hṛdayāya	hṛdayābhyām	hṛdayebhyaḥ
Ablative	hṛdayāt	hṛdayābhyām	hṛdayebhyaḥ
Genitive	hṛdayasya	hṛdayayoḥ	hṛdayānām
Locative	hṛdaye	hṛdayayoḥ	hṛdayeṣu

Compound hṛdaya -

Adverb -hṛdayam -hṛdayāt