Declension table of ?raṅktavya

Neuter	Singular	Dual	Plural
Nominative	raṅktavyam	raṅktavye	raṅktavyāni
Vocative	raṅktavya	raṅktavye	raṅktavyāni
Accusative	raṅktavyam	raṅktavye	raṅktavyāni
Instrumental	raṅktavyena	raṅktavyābhyām	raṅktavyaiḥ
Dative	raṅktavyāya	raṅktavyābhyām	raṅktavyebhyaḥ
Ablative	raṅktavyāt	raṅktavyābhyām	raṅktavyebhyaḥ
Genitive	raṅktavyasya	raṅktavyayoḥ	raṅktavyānām
Locative	raṅktavye	raṅktavyayoḥ	raṅktavyeṣu

Compound raṅktavya -

Adverb -raṅktavyam -raṅktavyāt