Declension table of ?bhairavamantra

Masculine	Singular	Dual	Plural
Nominative	bhairavamantraḥ	bhairavamantrau	bhairavamantrāḥ
Vocative	bhairavamantra	bhairavamantrau	bhairavamantrāḥ
Accusative	bhairavamantram	bhairavamantrau	bhairavamantrān
Instrumental	bhairavamantreṇa	bhairavamantrābhyām	bhairavamantraiḥ bhairavamantrebhiḥ
Dative	bhairavamantrāya	bhairavamantrābhyām	bhairavamantrebhyaḥ
Ablative	bhairavamantrāt	bhairavamantrābhyām	bhairavamantrebhyaḥ
Genitive	bhairavamantrasya	bhairavamantrayoḥ	bhairavamantrāṇām
Locative	bhairavamantre	bhairavamantrayoḥ	bhairavamantreṣu

Compound bhairavamantra -

Adverb -bhairavamantram -bhairavamantrāt