Declension table of ?mantravāda

Masculine	Singular	Dual	Plural
Nominative	mantravādaḥ	mantravādau	mantravādāḥ
Vocative	mantravāda	mantravādau	mantravādāḥ
Accusative	mantravādam	mantravādau	mantravādān
Instrumental	mantravādena	mantravādābhyām	mantravādaiḥ mantravādebhiḥ
Dative	mantravādāya	mantravādābhyām	mantravādebhyaḥ
Ablative	mantravādāt	mantravādābhyām	mantravādebhyaḥ
Genitive	mantravādasya	mantravādayoḥ	mantravādānām
Locative	mantravāde	mantravādayoḥ	mantravādeṣu

Compound mantravāda -

Adverb -mantravādam -mantravādāt