Declension table of saumanasa

Masculine	Singular	Dual	Plural
Nominative	saumanasaḥ	saumanasau	saumanasāḥ
Vocative	saumanasa	saumanasau	saumanasāḥ
Accusative	saumanasam	saumanasau	saumanasān
Instrumental	saumanasena	saumanasābhyām	saumanasaiḥ saumanasebhiḥ
Dative	saumanasāya	saumanasābhyām	saumanasebhyaḥ
Ablative	saumanasāt	saumanasābhyām	saumanasebhyaḥ
Genitive	saumanasasya	saumanasayoḥ	saumanasānām
Locative	saumanase	saumanasayoḥ	saumanaseṣu

Compound saumanasa -

Adverb -saumanasam -saumanasāt