Declension table of ?pratyupasthāna

Neuter	Singular	Dual	Plural
Nominative	pratyupasthānam	pratyupasthāne	pratyupasthānāni
Vocative	pratyupasthāna	pratyupasthāne	pratyupasthānāni
Accusative	pratyupasthānam	pratyupasthāne	pratyupasthānāni
Instrumental	pratyupasthānena	pratyupasthānābhyām	pratyupasthānaiḥ
Dative	pratyupasthānāya	pratyupasthānābhyām	pratyupasthānebhyaḥ
Ablative	pratyupasthānāt	pratyupasthānābhyām	pratyupasthānebhyaḥ
Genitive	pratyupasthānasya	pratyupasthānayoḥ	pratyupasthānānām
Locative	pratyupasthāne	pratyupasthānayoḥ	pratyupasthāneṣu

Compound pratyupasthāna -

Adverb -pratyupasthānam -pratyupasthānāt