Declension table of gurudeva

Masculine	Singular	Dual	Plural
Nominative	gurudevaḥ	gurudevau	gurudevāḥ
Vocative	gurudeva	gurudevau	gurudevāḥ
Accusative	gurudevam	gurudevau	gurudevān
Instrumental	gurudevena	gurudevābhyām	gurudevaiḥ gurudevebhiḥ
Dative	gurudevāya	gurudevābhyām	gurudevebhyaḥ
Ablative	gurudevāt	gurudevābhyām	gurudevebhyaḥ
Genitive	gurudevasya	gurudevayoḥ	gurudevānām
Locative	gurudeve	gurudevayoḥ	gurudeveṣu

Compound gurudeva -

Adverb -gurudevam -gurudevāt