Declension table of ?bhātavya

Neuter	Singular	Dual	Plural
Nominative	bhātavyam	bhātavye	bhātavyāni
Vocative	bhātavya	bhātavye	bhātavyāni
Accusative	bhātavyam	bhātavye	bhātavyāni
Instrumental	bhātavyena	bhātavyābhyām	bhātavyaiḥ
Dative	bhātavyāya	bhātavyābhyām	bhātavyebhyaḥ
Ablative	bhātavyāt	bhātavyābhyām	bhātavyebhyaḥ
Genitive	bhātavyasya	bhātavyayoḥ	bhātavyānām
Locative	bhātavye	bhātavyayoḥ	bhātavyeṣu

Compound bhātavya -

Adverb -bhātavyam -bhātavyāt