Declension table of ?puruputra

Masculine	Singular	Dual	Plural
Nominative	puruputraḥ	puruputrau	puruputrāḥ
Vocative	puruputra	puruputrau	puruputrāḥ
Accusative	puruputram	puruputrau	puruputrān
Instrumental	puruputreṇa	puruputrābhyām	puruputraiḥ puruputrebhiḥ
Dative	puruputrāya	puruputrābhyām	puruputrebhyaḥ
Ablative	puruputrāt	puruputrābhyām	puruputrebhyaḥ
Genitive	puruputrasya	puruputrayoḥ	puruputrāṇām
Locative	puruputre	puruputrayoḥ	puruputreṣu

Compound puruputra -

Adverb -puruputram -puruputrāt