Declension table of upādhika

Neuter	Singular	Dual	Plural
Nominative	upādhikam	upādhike	upādhikāni
Vocative	upādhika	upādhike	upādhikāni
Accusative	upādhikam	upādhike	upādhikāni
Instrumental	upādhikena	upādhikābhyām	upādhikaiḥ
Dative	upādhikāya	upādhikābhyām	upādhikebhyaḥ
Ablative	upādhikāt	upādhikābhyām	upādhikebhyaḥ
Genitive	upādhikasya	upādhikayoḥ	upādhikānām
Locative	upādhike	upādhikayoḥ	upādhikeṣu

Compound upādhika -

Adverb -upādhikam -upādhikāt