Declension table of ?mantrivara

Masculine	Singular	Dual	Plural
Nominative	mantrivaraḥ	mantrivarau	mantrivarāḥ
Vocative	mantrivara	mantrivarau	mantrivarāḥ
Accusative	mantrivaram	mantrivarau	mantrivarān
Instrumental	mantrivareṇa	mantrivarābhyām	mantrivaraiḥ mantrivarebhiḥ
Dative	mantrivarāya	mantrivarābhyām	mantrivarebhyaḥ
Ablative	mantrivarāt	mantrivarābhyām	mantrivarebhyaḥ
Genitive	mantrivarasya	mantrivarayoḥ	mantrivarāṇām
Locative	mantrivare	mantrivarayoḥ	mantrivareṣu

Compound mantrivara -

Adverb -mantrivaram -mantrivarāt