Declension table of virodhana

Neuter	Singular	Dual	Plural
Nominative	virodhanam	virodhane	virodhanāni
Vocative	virodhana	virodhane	virodhanāni
Accusative	virodhanam	virodhane	virodhanāni
Instrumental	virodhanena	virodhanābhyām	virodhanaiḥ
Dative	virodhanāya	virodhanābhyām	virodhanebhyaḥ
Ablative	virodhanāt	virodhanābhyām	virodhanebhyaḥ
Genitive	virodhanasya	virodhanayoḥ	virodhanānām
Locative	virodhane	virodhanayoḥ	virodhaneṣu

Compound virodhana -

Adverb -virodhanam -virodhanāt