Declension table of ?guruputra

Masculine	Singular	Dual	Plural
Nominative	guruputraḥ	guruputrau	guruputrāḥ
Vocative	guruputra	guruputrau	guruputrāḥ
Accusative	guruputram	guruputrau	guruputrān
Instrumental	guruputreṇa	guruputrābhyām	guruputraiḥ guruputrebhiḥ
Dative	guruputrāya	guruputrābhyām	guruputrebhyaḥ
Ablative	guruputrāt	guruputrābhyām	guruputrebhyaḥ
Genitive	guruputrasya	guruputrayoḥ	guruputrāṇām
Locative	guruputre	guruputrayoḥ	guruputreṣu

Compound guruputra -

Adverb -guruputram -guruputrāt