Declension table of ?prasavasthāna

Neuter	Singular	Dual	Plural
Nominative	prasavasthānam	prasavasthāne	prasavasthānāni
Vocative	prasavasthāna	prasavasthāne	prasavasthānāni
Accusative	prasavasthānam	prasavasthāne	prasavasthānāni
Instrumental	prasavasthānena	prasavasthānābhyām	prasavasthānaiḥ
Dative	prasavasthānāya	prasavasthānābhyām	prasavasthānebhyaḥ
Ablative	prasavasthānāt	prasavasthānābhyām	prasavasthānebhyaḥ
Genitive	prasavasthānasya	prasavasthānayoḥ	prasavasthānānām
Locative	prasavasthāne	prasavasthānayoḥ	prasavasthāneṣu

Compound prasavasthāna -

Adverb -prasavasthānam -prasavasthānāt