Declension table of ?śāntahṛdaya

Neuter	Singular	Dual	Plural
Nominative	śāntahṛdayam	śāntahṛdaye	śāntahṛdayāni
Vocative	śāntahṛdaya	śāntahṛdaye	śāntahṛdayāni
Accusative	śāntahṛdayam	śāntahṛdaye	śāntahṛdayāni
Instrumental	śāntahṛdayena	śāntahṛdayābhyām	śāntahṛdayaiḥ
Dative	śāntahṛdayāya	śāntahṛdayābhyām	śāntahṛdayebhyaḥ
Ablative	śāntahṛdayāt	śāntahṛdayābhyām	śāntahṛdayebhyaḥ
Genitive	śāntahṛdayasya	śāntahṛdayayoḥ	śāntahṛdayānām
Locative	śāntahṛdaye	śāntahṛdayayoḥ	śāntahṛdayeṣu

Compound śāntahṛdaya -

Adverb -śāntahṛdayam -śāntahṛdayāt