Declension table of ?sarvāsya

Neuter	Singular	Dual	Plural
Nominative	sarvāsyam	sarvāsye	sarvāsyāni
Vocative	sarvāsya	sarvāsye	sarvāsyāni
Accusative	sarvāsyam	sarvāsye	sarvāsyāni
Instrumental	sarvāsyena	sarvāsyābhyām	sarvāsyaiḥ
Dative	sarvāsyāya	sarvāsyābhyām	sarvāsyebhyaḥ
Ablative	sarvāsyāt	sarvāsyābhyām	sarvāsyebhyaḥ
Genitive	sarvāsyasya	sarvāsyayoḥ	sarvāsyānām
Locative	sarvāsye	sarvāsyayoḥ	sarvāsyeṣu

Compound sarvāsya -

Adverb -sarvāsyam -sarvāsyāt