Declension table of ?karitavya

Masculine	Singular	Dual	Plural
Nominative	karitavyaḥ	karitavyau	karitavyāḥ
Vocative	karitavya	karitavyau	karitavyāḥ
Accusative	karitavyam	karitavyau	karitavyān
Instrumental	karitavyena	karitavyābhyām	karitavyaiḥ karitavyebhiḥ
Dative	karitavyāya	karitavyābhyām	karitavyebhyaḥ
Ablative	karitavyāt	karitavyābhyām	karitavyebhyaḥ
Genitive	karitavyasya	karitavyayoḥ	karitavyānām
Locative	karitavye	karitavyayoḥ	karitavyeṣu

Compound karitavya -

Adverb -karitavyam -karitavyāt