Declension table of ?hṛdayeśvara

Masculine	Singular	Dual	Plural
Nominative	hṛdayeśvaraḥ	hṛdayeśvarau	hṛdayeśvarāḥ
Vocative	hṛdayeśvara	hṛdayeśvarau	hṛdayeśvarāḥ
Accusative	hṛdayeśvaram	hṛdayeśvarau	hṛdayeśvarān
Instrumental	hṛdayeśvareṇa	hṛdayeśvarābhyām	hṛdayeśvaraiḥ hṛdayeśvarebhiḥ
Dative	hṛdayeśvarāya	hṛdayeśvarābhyām	hṛdayeśvarebhyaḥ
Ablative	hṛdayeśvarāt	hṛdayeśvarābhyām	hṛdayeśvarebhyaḥ
Genitive	hṛdayeśvarasya	hṛdayeśvarayoḥ	hṛdayeśvarāṇām
Locative	hṛdayeśvare	hṛdayeśvarayoḥ	hṛdayeśvareṣu

Compound hṛdayeśvara -

Adverb -hṛdayeśvaram -hṛdayeśvarāt