Declension table of ?upanyāsya

Neuter	Singular	Dual	Plural
Nominative	upanyāsyam	upanyāsye	upanyāsyāni
Vocative	upanyāsya	upanyāsye	upanyāsyāni
Accusative	upanyāsyam	upanyāsye	upanyāsyāni
Instrumental	upanyāsyena	upanyāsyābhyām	upanyāsyaiḥ
Dative	upanyāsyāya	upanyāsyābhyām	upanyāsyebhyaḥ
Ablative	upanyāsyāt	upanyāsyābhyām	upanyāsyebhyaḥ
Genitive	upanyāsyasya	upanyāsyayoḥ	upanyāsyānām
Locative	upanyāsye	upanyāsyayoḥ	upanyāsyeṣu

Compound upanyāsya -

Adverb -upanyāsyam -upanyāsyāt