Declension table of upādhyāya

Masculine	Singular	Dual	Plural
Nominative	upādhyāyaḥ	upādhyāyau	upādhyāyāḥ
Vocative	upādhyāya	upādhyāyau	upādhyāyāḥ
Accusative	upādhyāyam	upādhyāyau	upādhyāyān
Instrumental	upādhyāyena	upādhyāyābhyām	upādhyāyaiḥ upādhyāyebhiḥ
Dative	upādhyāyāya	upādhyāyābhyām	upādhyāyebhyaḥ
Ablative	upādhyāyāt	upādhyāyābhyām	upādhyāyebhyaḥ
Genitive	upādhyāyasya	upādhyāyayoḥ	upādhyāyānām
Locative	upādhyāye	upādhyāyayoḥ	upādhyāyeṣu

Compound upādhyāya -

Adverb -upādhyāyam -upādhyāyāt