Declension table of ?dvādaśyudyāpana

Neuter	Singular	Dual	Plural
Nominative	dvādaśyudyāpanam	dvādaśyudyāpane	dvādaśyudyāpanāni
Vocative	dvādaśyudyāpana	dvādaśyudyāpane	dvādaśyudyāpanāni
Accusative	dvādaśyudyāpanam	dvādaśyudyāpane	dvādaśyudyāpanāni
Instrumental	dvādaśyudyāpanena	dvādaśyudyāpanābhyām	dvādaśyudyāpanaiḥ
Dative	dvādaśyudyāpanāya	dvādaśyudyāpanābhyām	dvādaśyudyāpanebhyaḥ
Ablative	dvādaśyudyāpanāt	dvādaśyudyāpanābhyām	dvādaśyudyāpanebhyaḥ
Genitive	dvādaśyudyāpanasya	dvādaśyudyāpanayoḥ	dvādaśyudyāpanānām
Locative	dvādaśyudyāpane	dvādaśyudyāpanayoḥ	dvādaśyudyāpaneṣu

Compound dvādaśyudyāpana -

Adverb -dvādaśyudyāpanam -dvādaśyudyāpanāt