Declension table of ?upaśāyaka

Masculine	Singular	Dual	Plural
Nominative	upaśāyakaḥ	upaśāyakau	upaśāyakāḥ
Vocative	upaśāyaka	upaśāyakau	upaśāyakāḥ
Accusative	upaśāyakam	upaśāyakau	upaśāyakān
Instrumental	upaśāyakena	upaśāyakābhyām	upaśāyakaiḥ upaśāyakebhiḥ
Dative	upaśāyakāya	upaśāyakābhyām	upaśāyakebhyaḥ
Ablative	upaśāyakāt	upaśāyakābhyām	upaśāyakebhyaḥ
Genitive	upaśāyakasya	upaśāyakayoḥ	upaśāyakānām
Locative	upaśāyake	upaśāyakayoḥ	upaśāyakeṣu

Compound upaśāyaka -

Adverb -upaśāyakam -upaśāyakāt