Declension table of ?chyotavya

Neuter	Singular	Dual	Plural
Nominative	chyotavyam	chyotavye	chyotavyāni
Vocative	chyotavya	chyotavye	chyotavyāni
Accusative	chyotavyam	chyotavye	chyotavyāni
Instrumental	chyotavyena	chyotavyābhyām	chyotavyaiḥ
Dative	chyotavyāya	chyotavyābhyām	chyotavyebhyaḥ
Ablative	chyotavyāt	chyotavyābhyām	chyotavyebhyaḥ
Genitive	chyotavyasya	chyotavyayoḥ	chyotavyānām
Locative	chyotavye	chyotavyayoḥ	chyotavyeṣu

Compound chyotavya -

Adverb -chyotavyam -chyotavyāt