Declension table of ?ṛtāyitavya

Masculine	Singular	Dual	Plural
Nominative	ṛtāyitavyaḥ	ṛtāyitavyau	ṛtāyitavyāḥ
Vocative	ṛtāyitavya	ṛtāyitavyau	ṛtāyitavyāḥ
Accusative	ṛtāyitavyam	ṛtāyitavyau	ṛtāyitavyān
Instrumental	ṛtāyitavyena	ṛtāyitavyābhyām	ṛtāyitavyaiḥ ṛtāyitavyebhiḥ
Dative	ṛtāyitavyāya	ṛtāyitavyābhyām	ṛtāyitavyebhyaḥ
Ablative	ṛtāyitavyāt	ṛtāyitavyābhyām	ṛtāyitavyebhyaḥ
Genitive	ṛtāyitavyasya	ṛtāyitavyayoḥ	ṛtāyitavyānām
Locative	ṛtāyitavye	ṛtāyitavyayoḥ	ṛtāyitavyeṣu

Compound ṛtāyitavya -

Adverb -ṛtāyitavyam -ṛtāyitavyāt