Declension table of ?mantramaya

Neuter	Singular	Dual	Plural
Nominative	mantramayam	mantramaye	mantramayāṇi
Vocative	mantramaya	mantramaye	mantramayāṇi
Accusative	mantramayam	mantramaye	mantramayāṇi
Instrumental	mantramayeṇa	mantramayābhyām	mantramayaiḥ
Dative	mantramayāya	mantramayābhyām	mantramayebhyaḥ
Ablative	mantramayāt	mantramayābhyām	mantramayebhyaḥ
Genitive	mantramayasya	mantramayayoḥ	mantramayāṇām
Locative	mantramaye	mantramayayoḥ	mantramayeṣu

Compound mantramaya -

Adverb -mantramayam -mantramayāt