Declension table of ?puruputra

Neuter	Singular	Dual	Plural
Nominative	puruputram	puruputre	puruputrāṇi
Vocative	puruputra	puruputre	puruputrāṇi
Accusative	puruputram	puruputre	puruputrāṇi
Instrumental	puruputreṇa	puruputrābhyām	puruputraiḥ
Dative	puruputrāya	puruputrābhyām	puruputrebhyaḥ
Ablative	puruputrāt	puruputrābhyām	puruputrebhyaḥ
Genitive	puruputrasya	puruputrayoḥ	puruputrāṇām
Locative	puruputre	puruputrayoḥ	puruputreṣu

Compound puruputra -

Adverb -puruputram -puruputrāt