Declension table of ?jyotirmantra

Masculine	Singular	Dual	Plural
Nominative	jyotirmantraḥ	jyotirmantrau	jyotirmantrāḥ
Vocative	jyotirmantra	jyotirmantrau	jyotirmantrāḥ
Accusative	jyotirmantram	jyotirmantrau	jyotirmantrān
Instrumental	jyotirmantreṇa	jyotirmantrābhyām	jyotirmantraiḥ jyotirmantrebhiḥ
Dative	jyotirmantrāya	jyotirmantrābhyām	jyotirmantrebhyaḥ
Ablative	jyotirmantrāt	jyotirmantrābhyām	jyotirmantrebhyaḥ
Genitive	jyotirmantrasya	jyotirmantrayoḥ	jyotirmantrāṇām
Locative	jyotirmantre	jyotirmantrayoḥ	jyotirmantreṣu

Compound jyotirmantra -

Adverb -jyotirmantram -jyotirmantrāt