Declension table of ?jñātaputra

Masculine	Singular	Dual	Plural
Nominative	jñātaputraḥ	jñātaputrau	jñātaputrāḥ
Vocative	jñātaputra	jñātaputrau	jñātaputrāḥ
Accusative	jñātaputram	jñātaputrau	jñātaputrān
Instrumental	jñātaputreṇa	jñātaputrābhyām	jñātaputraiḥ jñātaputrebhiḥ
Dative	jñātaputrāya	jñātaputrābhyām	jñātaputrebhyaḥ
Ablative	jñātaputrāt	jñātaputrābhyām	jñātaputrebhyaḥ
Genitive	jñātaputrasya	jñātaputrayoḥ	jñātaputrāṇām
Locative	jñātaputre	jñātaputrayoḥ	jñātaputreṣu

Compound jñātaputra -

Adverb -jñātaputram -jñātaputrāt