Declension table of ?saptāsya

Neuter	Singular	Dual	Plural
Nominative	saptāsyam	saptāsye	saptāsyāni
Vocative	saptāsya	saptāsye	saptāsyāni
Accusative	saptāsyam	saptāsye	saptāsyāni
Instrumental	saptāsyena	saptāsyābhyām	saptāsyaiḥ
Dative	saptāsyāya	saptāsyābhyām	saptāsyebhyaḥ
Ablative	saptāsyāt	saptāsyābhyām	saptāsyebhyaḥ
Genitive	saptāsyasya	saptāsyayoḥ	saptāsyānām
Locative	saptāsye	saptāsyayoḥ	saptāsyeṣu

Compound saptāsya -

Adverb -saptāsyam -saptāsyāt