Declension table of ?saptataya

Neuter	Singular	Dual	Plural
Nominative	saptatayam	saptataye	saptatayāni
Vocative	saptataya	saptataye	saptatayāni
Accusative	saptatayam	saptataye	saptatayāni
Instrumental	saptatayena	saptatayābhyām	saptatayaiḥ
Dative	saptatayāya	saptatayābhyām	saptatayebhyaḥ
Ablative	saptatayāt	saptatayābhyām	saptatayebhyaḥ
Genitive	saptatayasya	saptatayayoḥ	saptatayānām
Locative	saptataye	saptatayayoḥ	saptatayeṣu

Compound saptataya -

Adverb -saptatayam -saptatayāt