Declension table of aupāsana

Masculine	Singular	Dual	Plural
Nominative	aupāsanaḥ	aupāsanau	aupāsanāḥ
Vocative	aupāsana	aupāsanau	aupāsanāḥ
Accusative	aupāsanam	aupāsanau	aupāsanān
Instrumental	aupāsanena	aupāsanābhyām	aupāsanaiḥ aupāsanebhiḥ
Dative	aupāsanāya	aupāsanābhyām	aupāsanebhyaḥ
Ablative	aupāsanāt	aupāsanābhyām	aupāsanebhyaḥ
Genitive	aupāsanasya	aupāsanayoḥ	aupāsanānām
Locative	aupāsane	aupāsanayoḥ	aupāsaneṣu

Compound aupāsana -

Adverb -aupāsanam -aupāsanāt