Declension table of ?jyotitavya

Neuter	Singular	Dual	Plural
Nominative	jyotitavyam	jyotitavye	jyotitavyāni
Vocative	jyotitavya	jyotitavye	jyotitavyāni
Accusative	jyotitavyam	jyotitavye	jyotitavyāni
Instrumental	jyotitavyena	jyotitavyābhyām	jyotitavyaiḥ
Dative	jyotitavyāya	jyotitavyābhyām	jyotitavyebhyaḥ
Ablative	jyotitavyāt	jyotitavyābhyām	jyotitavyebhyaḥ
Genitive	jyotitavyasya	jyotitavyayoḥ	jyotitavyānām
Locative	jyotitavye	jyotitavyayoḥ	jyotitavyeṣu

Compound jyotitavya -

Adverb -jyotitavyam -jyotitavyāt