Declension table of ?ahaṅkartavya

Masculine	Singular	Dual	Plural
Nominative	ahaṅkartavyaḥ	ahaṅkartavyau	ahaṅkartavyāḥ
Vocative	ahaṅkartavya	ahaṅkartavyau	ahaṅkartavyāḥ
Accusative	ahaṅkartavyam	ahaṅkartavyau	ahaṅkartavyān
Instrumental	ahaṅkartavyena	ahaṅkartavyābhyām	ahaṅkartavyaiḥ ahaṅkartavyebhiḥ
Dative	ahaṅkartavyāya	ahaṅkartavyābhyām	ahaṅkartavyebhyaḥ
Ablative	ahaṅkartavyāt	ahaṅkartavyābhyām	ahaṅkartavyebhyaḥ
Genitive	ahaṅkartavyasya	ahaṅkartavyayoḥ	ahaṅkartavyānām
Locative	ahaṅkartavye	ahaṅkartavyayoḥ	ahaṅkartavyeṣu

Compound ahaṅkartavya -

Adverb -ahaṅkartavyam -ahaṅkartavyāt