Declension table of ?prasavana

Neuter	Singular	Dual	Plural
Nominative	prasavanam	prasavane	prasavanāni
Vocative	prasavana	prasavane	prasavanāni
Accusative	prasavanam	prasavane	prasavanāni
Instrumental	prasavanena	prasavanābhyām	prasavanaiḥ
Dative	prasavanāya	prasavanābhyām	prasavanebhyaḥ
Ablative	prasavanāt	prasavanābhyām	prasavanebhyaḥ
Genitive	prasavanasya	prasavanayoḥ	prasavanānām
Locative	prasavane	prasavanayoḥ	prasavaneṣu

Compound prasavana -

Adverb -prasavanam -prasavanāt