Declension table of ?rasayitavya

Neuter	Singular	Dual	Plural
Nominative	rasayitavyam	rasayitavye	rasayitavyāni
Vocative	rasayitavya	rasayitavye	rasayitavyāni
Accusative	rasayitavyam	rasayitavye	rasayitavyāni
Instrumental	rasayitavyena	rasayitavyābhyām	rasayitavyaiḥ
Dative	rasayitavyāya	rasayitavyābhyām	rasayitavyebhyaḥ
Ablative	rasayitavyāt	rasayitavyābhyām	rasayitavyebhyaḥ
Genitive	rasayitavyasya	rasayitavyayoḥ	rasayitavyānām
Locative	rasayitavye	rasayitavyayoḥ	rasayitavyeṣu

Compound rasayitavya -

Adverb -rasayitavyam -rasayitavyāt