Declension table of mantrasiddha

Masculine	Singular	Dual	Plural
Nominative	mantrasiddhaḥ	mantrasiddhau	mantrasiddhāḥ
Vocative	mantrasiddha	mantrasiddhau	mantrasiddhāḥ
Accusative	mantrasiddham	mantrasiddhau	mantrasiddhān
Instrumental	mantrasiddhena	mantrasiddhābhyām	mantrasiddhaiḥ mantrasiddhebhiḥ
Dative	mantrasiddhāya	mantrasiddhābhyām	mantrasiddhebhyaḥ
Ablative	mantrasiddhāt	mantrasiddhābhyām	mantrasiddhebhyaḥ
Genitive	mantrasiddhasya	mantrasiddhayoḥ	mantrasiddhānām
Locative	mantrasiddhe	mantrasiddhayoḥ	mantrasiddheṣu

Compound mantrasiddha -

Adverb -mantrasiddham -mantrasiddhāt