Declension table of ?mantraṇīya

Neuter	Singular	Dual	Plural
Nominative	mantraṇīyam	mantraṇīye	mantraṇīyāni
Vocative	mantraṇīya	mantraṇīye	mantraṇīyāni
Accusative	mantraṇīyam	mantraṇīye	mantraṇīyāni
Instrumental	mantraṇīyena	mantraṇīyābhyām	mantraṇīyaiḥ
Dative	mantraṇīyāya	mantraṇīyābhyām	mantraṇīyebhyaḥ
Ablative	mantraṇīyāt	mantraṇīyābhyām	mantraṇīyebhyaḥ
Genitive	mantraṇīyasya	mantraṇīyayoḥ	mantraṇīyānām
Locative	mantraṇīye	mantraṇīyayoḥ	mantraṇīyeṣu

Compound mantraṇīya -

Adverb -mantraṇīyam -mantraṇīyāt