Declension table of prastara

Masculine	Singular	Dual	Plural
Nominative	prastaraḥ	prastarau	prastarāḥ
Vocative	prastara	prastarau	prastarāḥ
Accusative	prastaram	prastarau	prastarān
Instrumental	prastareṇa	prastarābhyām	prastaraiḥ prastarebhiḥ
Dative	prastarāya	prastarābhyām	prastarebhyaḥ
Ablative	prastarāt	prastarābhyām	prastarebhyaḥ
Genitive	prastarasya	prastarayoḥ	prastarāṇām
Locative	prastare	prastarayoḥ	prastareṣu

Compound prastara -

Adverb -prastaram -prastarāt