Declension table of ?pratividdha

Masculine	Singular	Dual	Plural
Nominative	pratividdhaḥ	pratividdhau	pratividdhāḥ
Vocative	pratividdha	pratividdhau	pratividdhāḥ
Accusative	pratividdham	pratividdhau	pratividdhān
Instrumental	pratividdhena	pratividdhābhyām	pratividdhaiḥ pratividdhebhiḥ
Dative	pratividdhāya	pratividdhābhyām	pratividdhebhyaḥ
Ablative	pratividdhāt	pratividdhābhyām	pratividdhebhyaḥ
Genitive	pratividdhasya	pratividdhayoḥ	pratividdhānām
Locative	pratividdhe	pratividdhayoḥ	pratividdheṣu

Compound pratividdha -

Adverb -pratividdham -pratividdhāt