Declension table of ?ṛtayitavya

Masculine	Singular	Dual	Plural
Nominative	ṛtayitavyaḥ	ṛtayitavyau	ṛtayitavyāḥ
Vocative	ṛtayitavya	ṛtayitavyau	ṛtayitavyāḥ
Accusative	ṛtayitavyam	ṛtayitavyau	ṛtayitavyān
Instrumental	ṛtayitavyena	ṛtayitavyābhyām	ṛtayitavyaiḥ ṛtayitavyebhiḥ
Dative	ṛtayitavyāya	ṛtayitavyābhyām	ṛtayitavyebhyaḥ
Ablative	ṛtayitavyāt	ṛtayitavyābhyām	ṛtayitavyebhyaḥ
Genitive	ṛtayitavyasya	ṛtayitavyayoḥ	ṛtayitavyānām
Locative	ṛtayitavye	ṛtayitavyayoḥ	ṛtayitavyeṣu

Compound ṛtayitavya -

Adverb -ṛtayitavyam -ṛtayitavyāt