Declension table of paurastya

Masculine	Singular	Dual	Plural
Nominative	paurastyaḥ	paurastyau	paurastyāḥ
Vocative	paurastya	paurastyau	paurastyāḥ
Accusative	paurastyam	paurastyau	paurastyān
Instrumental	paurastyena	paurastyābhyām	paurastyaiḥ paurastyebhiḥ
Dative	paurastyāya	paurastyābhyām	paurastyebhyaḥ
Ablative	paurastyāt	paurastyābhyām	paurastyebhyaḥ
Genitive	paurastyasya	paurastyayoḥ	paurastyānām
Locative	paurastye	paurastyayoḥ	paurastyeṣu

Compound paurastya -

Adverb -paurastyam -paurastyāt