Declension table of sadasya

Neuter	Singular	Dual	Plural
Nominative	sadasyam	sadasye	sadasyāni
Vocative	sadasya	sadasye	sadasyāni
Accusative	sadasyam	sadasye	sadasyāni
Instrumental	sadasyena	sadasyābhyām	sadasyaiḥ
Dative	sadasyāya	sadasyābhyām	sadasyebhyaḥ
Ablative	sadasyāt	sadasyābhyām	sadasyebhyaḥ
Genitive	sadasyasya	sadasyayoḥ	sadasyānām
Locative	sadasye	sadasyayoḥ	sadasyeṣu

Compound sadasya -

Adverb -sadasyam -sadasyāt