Declension table of ?maṇtavat

Masculine	Singular	Dual	Plural
Nominative	maṇtavān	maṇtavantau	maṇtavantaḥ
Vocative	maṇtavan	maṇtavantau	maṇtavantaḥ
Accusative	maṇtavantam	maṇtavantau	maṇtavataḥ
Instrumental	maṇtavatā	maṇtavadbhyām	maṇtavadbhiḥ
Dative	maṇtavate	maṇtavadbhyām	maṇtavadbhyaḥ
Ablative	maṇtavataḥ	maṇtavadbhyām	maṇtavadbhyaḥ
Genitive	maṇtavataḥ	maṇtavatoḥ	maṇtavatām
Locative	maṇtavati	maṇtavatoḥ	maṇtavatsu

Compound maṇtavat -

Adverb -maṇtavantam