Declension table of ?hṛdayāgra

Neuter	Singular	Dual	Plural
Nominative	hṛdayāgram	hṛdayāgre	hṛdayāgrāṇi
Vocative	hṛdayāgra	hṛdayāgre	hṛdayāgrāṇi
Accusative	hṛdayāgram	hṛdayāgre	hṛdayāgrāṇi
Instrumental	hṛdayāgreṇa	hṛdayāgrābhyām	hṛdayāgraiḥ
Dative	hṛdayāgrāya	hṛdayāgrābhyām	hṛdayāgrebhyaḥ
Ablative	hṛdayāgrāt	hṛdayāgrābhyām	hṛdayāgrebhyaḥ
Genitive	hṛdayāgrasya	hṛdayāgrayoḥ	hṛdayāgrāṇām
Locative	hṛdayāgre	hṛdayāgrayoḥ	hṛdayāgreṣu

Compound hṛdayāgra -

Adverb -hṛdayāgram -hṛdayāgrāt