Declension table of ?dviśāṇya

Neuter	Singular	Dual	Plural
Nominative	dviśāṇyam	dviśāṇye	dviśāṇyāni
Vocative	dviśāṇya	dviśāṇye	dviśāṇyāni
Accusative	dviśāṇyam	dviśāṇye	dviśāṇyāni
Instrumental	dviśāṇyena	dviśāṇyābhyām	dviśāṇyaiḥ
Dative	dviśāṇyāya	dviśāṇyābhyām	dviśāṇyebhyaḥ
Ablative	dviśāṇyāt	dviśāṇyābhyām	dviśāṇyebhyaḥ
Genitive	dviśāṇyasya	dviśāṇyayoḥ	dviśāṇyānām
Locative	dviśāṇye	dviśāṇyayoḥ	dviśāṇyeṣu

Compound dviśāṇya -

Adverb -dviśāṇyam -dviśāṇyāt