Declension table of upāya

Masculine	Singular	Dual	Plural
Nominative	upāyaḥ	upāyau	upāyāḥ
Vocative	upāya	upāyau	upāyāḥ
Accusative	upāyam	upāyau	upāyān
Instrumental	upāyena	upāyābhyām	upāyaiḥ upāyebhiḥ
Dative	upāyāya	upāyābhyām	upāyebhyaḥ
Ablative	upāyāt	upāyābhyām	upāyebhyaḥ
Genitive	upāyasya	upāyayoḥ	upāyānām
Locative	upāye	upāyayoḥ	upāyeṣu

Compound upāya -

Adverb -upāyam -upāyāt