Declension table of ?avamantavya

Neuter	Singular	Dual	Plural
Nominative	avamantavyam	avamantavye	avamantavyāni
Vocative	avamantavya	avamantavye	avamantavyāni
Accusative	avamantavyam	avamantavye	avamantavyāni
Instrumental	avamantavyena	avamantavyābhyām	avamantavyaiḥ
Dative	avamantavyāya	avamantavyābhyām	avamantavyebhyaḥ
Ablative	avamantavyāt	avamantavyābhyām	avamantavyebhyaḥ
Genitive	avamantavyasya	avamantavyayoḥ	avamantavyānām
Locative	avamantavye	avamantavyayoḥ	avamantavyeṣu

Compound avamantavya -

Adverb -avamantavyam -avamantavyāt