Declension table of ?pratirodhana

Neuter	Singular	Dual	Plural
Nominative	pratirodhanam	pratirodhane	pratirodhanāni
Vocative	pratirodhana	pratirodhane	pratirodhanāni
Accusative	pratirodhanam	pratirodhane	pratirodhanāni
Instrumental	pratirodhanena	pratirodhanābhyām	pratirodhanaiḥ
Dative	pratirodhanāya	pratirodhanābhyām	pratirodhanebhyaḥ
Ablative	pratirodhanāt	pratirodhanābhyām	pratirodhanebhyaḥ
Genitive	pratirodhanasya	pratirodhanayoḥ	pratirodhanānām
Locative	pratirodhane	pratirodhanayoḥ	pratirodhaneṣu

Compound pratirodhana -

Adverb -pratirodhanam -pratirodhanāt