Declension table of amantra

Masculine	Singular	Dual	Plural
Nominative	amantraḥ	amantrau	amantrāḥ
Vocative	amantra	amantrau	amantrāḥ
Accusative	amantram	amantrau	amantrān
Instrumental	amantreṇa	amantrābhyām	amantraiḥ
Dative	amantrāya	amantrābhyām	amantrebhyaḥ
Ablative	amantrāt	amantrābhyām	amantrebhyaḥ
Genitive	amantrasya	amantrayoḥ	amantrāṇām
Locative	amantre	amantrayoḥ	amantreṣu

Compound amantra -

Adverb -amantram -amantrāt