Declension table of ?apayasya

Neuter	Singular	Dual	Plural
Nominative	apayasyam	apayasye	apayasyāni
Vocative	apayasya	apayasye	apayasyāni
Accusative	apayasyam	apayasye	apayasyāni
Instrumental	apayasyena	apayasyābhyām	apayasyaiḥ
Dative	apayasyāya	apayasyābhyām	apayasyebhyaḥ
Ablative	apayasyāt	apayasyābhyām	apayasyebhyaḥ
Genitive	apayasyasya	apayasyayoḥ	apayasyānām
Locative	apayasye	apayasyayoḥ	apayasyeṣu

Compound apayasya -

Adverb -apayasyam -apayasyāt