Declension table of ?tantrahṛdaya

Neuter	Singular	Dual	Plural
Nominative	tantrahṛdayam	tantrahṛdaye	tantrahṛdayāni
Vocative	tantrahṛdaya	tantrahṛdaye	tantrahṛdayāni
Accusative	tantrahṛdayam	tantrahṛdaye	tantrahṛdayāni
Instrumental	tantrahṛdayena	tantrahṛdayābhyām	tantrahṛdayaiḥ
Dative	tantrahṛdayāya	tantrahṛdayābhyām	tantrahṛdayebhyaḥ
Ablative	tantrahṛdayāt	tantrahṛdayābhyām	tantrahṛdayebhyaḥ
Genitive	tantrahṛdayasya	tantrahṛdayayoḥ	tantrahṛdayānām
Locative	tantrahṛdaye	tantrahṛdayayoḥ	tantrahṛdayeṣu

Compound tantrahṛdaya -

Adverb -tantrahṛdayam -tantrahṛdayāt