Declension table of ?pratividdha

Neuter	Singular	Dual	Plural
Nominative	pratividdham	pratividdhe	pratividdhāni
Vocative	pratividdha	pratividdhe	pratividdhāni
Accusative	pratividdham	pratividdhe	pratividdhāni
Instrumental	pratividdhena	pratividdhābhyām	pratividdhaiḥ
Dative	pratividdhāya	pratividdhābhyām	pratividdhebhyaḥ
Ablative	pratividdhāt	pratividdhābhyām	pratividdhebhyaḥ
Genitive	pratividdhasya	pratividdhayoḥ	pratividdhānām
Locative	pratividdhe	pratividdhayoḥ	pratividdheṣu

Compound pratividdha -

Adverb -pratividdham -pratividdhāt