Declension table of ?hṛdayajñatva

Neuter	Singular	Dual	Plural
Nominative	hṛdayajñatvam	hṛdayajñatve	hṛdayajñatvāni
Vocative	hṛdayajñatva	hṛdayajñatve	hṛdayajñatvāni
Accusative	hṛdayajñatvam	hṛdayajñatve	hṛdayajñatvāni
Instrumental	hṛdayajñatvena	hṛdayajñatvābhyām	hṛdayajñatvaiḥ
Dative	hṛdayajñatvāya	hṛdayajñatvābhyām	hṛdayajñatvebhyaḥ
Ablative	hṛdayajñatvāt	hṛdayajñatvābhyām	hṛdayajñatvebhyaḥ
Genitive	hṛdayajñatvasya	hṛdayajñatvayoḥ	hṛdayajñatvānām
Locative	hṛdayajñatve	hṛdayajñatvayoḥ	hṛdayajñatveṣu

Compound hṛdayajñatva -

Adverb -hṛdayajñatvam -hṛdayajñatvāt