Declension table of ?aupasthāna

Masculine	Singular	Dual	Plural
Nominative	aupasthānaḥ	aupasthānau	aupasthānāḥ
Vocative	aupasthāna	aupasthānau	aupasthānāḥ
Accusative	aupasthānam	aupasthānau	aupasthānān
Instrumental	aupasthānena	aupasthānābhyām	aupasthānaiḥ aupasthānebhiḥ
Dative	aupasthānāya	aupasthānābhyām	aupasthānebhyaḥ
Ablative	aupasthānāt	aupasthānābhyām	aupasthānebhyaḥ
Genitive	aupasthānasya	aupasthānayoḥ	aupasthānānām
Locative	aupasthāne	aupasthānayoḥ	aupasthāneṣu

Compound aupasthāna -

Adverb -aupasthānam -aupasthānāt