Declension table of ?dvādaśarca

Masculine	Singular	Dual	Plural
Nominative	dvādaśarcaḥ	dvādaśarcau	dvādaśarcāḥ
Vocative	dvādaśarca	dvādaśarcau	dvādaśarcāḥ
Accusative	dvādaśarcam	dvādaśarcau	dvādaśarcān
Instrumental	dvādaśarcena	dvādaśarcābhyām	dvādaśarcaiḥ dvādaśarcebhiḥ
Dative	dvādaśarcāya	dvādaśarcābhyām	dvādaśarcebhyaḥ
Ablative	dvādaśarcāt	dvādaśarcābhyām	dvādaśarcebhyaḥ
Genitive	dvādaśarcasya	dvādaśarcayoḥ	dvādaśarcānām
Locative	dvādaśarce	dvādaśarcayoḥ	dvādaśarceṣu

Compound dvādaśarca -

Adverb -dvādaśarcam -dvādaśarcāt