Declension table of ?prasnavana

Neuter	Singular	Dual	Plural
Nominative	prasnavanam	prasnavane	prasnavanāni
Vocative	prasnavana	prasnavane	prasnavanāni
Accusative	prasnavanam	prasnavane	prasnavanāni
Instrumental	prasnavanena	prasnavanābhyām	prasnavanaiḥ
Dative	prasnavanāya	prasnavanābhyām	prasnavanebhyaḥ
Ablative	prasnavanāt	prasnavanābhyām	prasnavanebhyaḥ
Genitive	prasnavanasya	prasnavanayoḥ	prasnavanānām
Locative	prasnavane	prasnavanayoḥ	prasnavaneṣu

Compound prasnavana -

Adverb -prasnavanam -prasnavanāt