Declension table of ?hṛtamānasa

Neuter	Singular	Dual	Plural
Nominative	hṛtamānasam	hṛtamānase	hṛtamānasāni
Vocative	hṛtamānasa	hṛtamānase	hṛtamānasāni
Accusative	hṛtamānasam	hṛtamānase	hṛtamānasāni
Instrumental	hṛtamānasena	hṛtamānasābhyām	hṛtamānasaiḥ
Dative	hṛtamānasāya	hṛtamānasābhyām	hṛtamānasebhyaḥ
Ablative	hṛtamānasāt	hṛtamānasābhyām	hṛtamānasebhyaḥ
Genitive	hṛtamānasasya	hṛtamānasayoḥ	hṛtamānasānām
Locative	hṛtamānase	hṛtamānasayoḥ	hṛtamānaseṣu

Compound hṛtamānasa -

Adverb -hṛtamānasam -hṛtamānasāt