Declension table of upasthāyuka

Masculine	Singular	Dual	Plural
Nominative	upasthāyukaḥ	upasthāyukau	upasthāyukāḥ
Vocative	upasthāyuka	upasthāyukau	upasthāyukāḥ
Accusative	upasthāyukam	upasthāyukau	upasthāyukān
Instrumental	upasthāyukena	upasthāyukābhyām	upasthāyukaiḥ
Dative	upasthāyukāya	upasthāyukābhyām	upasthāyukebhyaḥ
Ablative	upasthāyukāt	upasthāyukābhyām	upasthāyukebhyaḥ
Genitive	upasthāyukasya	upasthāyukayoḥ	upasthāyukānām
Locative	upasthāyuke	upasthāyukayoḥ	upasthāyukeṣu

Compound upasthāyuka -

Adverb -upasthāyukam -upasthāyukāt