Declension table of ?upya

Neuter	Singular	Dual	Plural
Nominative	upyam	upye	upyāni
Vocative	upya	upye	upyāni
Accusative	upyam	upye	upyāni
Instrumental	upyena	upyābhyām	upyaiḥ
Dative	upyāya	upyābhyām	upyebhyaḥ
Ablative	upyāt	upyābhyām	upyebhyaḥ
Genitive	upyasya	upyayoḥ	upyānām
Locative	upye	upyayoḥ	upyeṣu

Compound upya -

Adverb -upyam -upyāt