Declension table of upaśāya

Masculine	Singular	Dual	Plural
Nominative	upaśāyaḥ	upaśāyau	upaśāyāḥ
Vocative	upaśāya	upaśāyau	upaśāyāḥ
Accusative	upaśāyam	upaśāyau	upaśāyān
Instrumental	upaśāyena	upaśāyābhyām	upaśāyaiḥ upaśāyebhiḥ
Dative	upaśāyāya	upaśāyābhyām	upaśāyebhyaḥ
Ablative	upaśāyāt	upaśāyābhyām	upaśāyebhyaḥ
Genitive	upaśāyasya	upaśāyayoḥ	upaśāyānām
Locative	upaśāye	upaśāyayoḥ	upaśāyeṣu

Compound upaśāya -

Adverb -upaśāyam -upaśāyāt