Declension table of ?durhṛdaya

Masculine	Singular	Dual	Plural
Nominative	durhṛdayaḥ	durhṛdayau	durhṛdayāḥ
Vocative	durhṛdaya	durhṛdayau	durhṛdayāḥ
Accusative	durhṛdayam	durhṛdayau	durhṛdayān
Instrumental	durhṛdayena	durhṛdayābhyām	durhṛdayaiḥ durhṛdayebhiḥ
Dative	durhṛdayāya	durhṛdayābhyām	durhṛdayebhyaḥ
Ablative	durhṛdayāt	durhṛdayābhyām	durhṛdayebhyaḥ
Genitive	durhṛdayasya	durhṛdayayoḥ	durhṛdayānām
Locative	durhṛdaye	durhṛdayayoḥ	durhṛdayeṣu

Compound durhṛdaya -

Adverb -durhṛdayam -durhṛdayāt