Declension table of ?nādhitavya

Neuter	Singular	Dual	Plural
Nominative	nādhitavyam	nādhitavye	nādhitavyāni
Vocative	nādhitavya	nādhitavye	nādhitavyāni
Accusative	nādhitavyam	nādhitavye	nādhitavyāni
Instrumental	nādhitavyena	nādhitavyābhyām	nādhitavyaiḥ
Dative	nādhitavyāya	nādhitavyābhyām	nādhitavyebhyaḥ
Ablative	nādhitavyāt	nādhitavyābhyām	nādhitavyebhyaḥ
Genitive	nādhitavyasya	nādhitavyayoḥ	nādhitavyānām
Locative	nādhitavye	nādhitavyayoḥ	nādhitavyeṣu

Compound nādhitavya -

Adverb -nādhitavyam -nādhitavyāt