Declension table of ?prastava

Masculine	Singular	Dual	Plural
Nominative	prastavaḥ	prastavau	prastavāḥ
Vocative	prastava	prastavau	prastavāḥ
Accusative	prastavam	prastavau	prastavān
Instrumental	prastavena	prastavābhyām	prastavaiḥ prastavebhiḥ
Dative	prastavāya	prastavābhyām	prastavebhyaḥ
Ablative	prastavāt	prastavābhyām	prastavebhyaḥ
Genitive	prastavasya	prastavayoḥ	prastavānām
Locative	prastave	prastavayoḥ	prastaveṣu

Compound prastava -

Adverb -prastavam -prastavāt