Declension table of ?durmantra

Masculine	Singular	Dual	Plural
Nominative	durmantraḥ	durmantrau	durmantrāḥ
Vocative	durmantra	durmantrau	durmantrāḥ
Accusative	durmantram	durmantrau	durmantrān
Instrumental	durmantreṇa	durmantrābhyām	durmantraiḥ durmantrebhiḥ
Dative	durmantrāya	durmantrābhyām	durmantrebhyaḥ
Ablative	durmantrāt	durmantrābhyām	durmantrebhyaḥ
Genitive	durmantrasya	durmantrayoḥ	durmantrāṇām
Locative	durmantre	durmantrayoḥ	durmantreṣu

Compound durmantra -

Adverb -durmantram -durmantrāt