Declension table of ?niṣkayitavya

Masculine	Singular	Dual	Plural
Nominative	niṣkayitavyaḥ	niṣkayitavyau	niṣkayitavyāḥ
Vocative	niṣkayitavya	niṣkayitavyau	niṣkayitavyāḥ
Accusative	niṣkayitavyam	niṣkayitavyau	niṣkayitavyān
Instrumental	niṣkayitavyena	niṣkayitavyābhyām	niṣkayitavyaiḥ niṣkayitavyebhiḥ
Dative	niṣkayitavyāya	niṣkayitavyābhyām	niṣkayitavyebhyaḥ
Ablative	niṣkayitavyāt	niṣkayitavyābhyām	niṣkayitavyebhyaḥ
Genitive	niṣkayitavyasya	niṣkayitavyayoḥ	niṣkayitavyānām
Locative	niṣkayitavye	niṣkayitavyayoḥ	niṣkayitavyeṣu

Compound niṣkayitavya -

Adverb -niṣkayitavyam -niṣkayitavyāt