Declension table of ?nirjanatva

Neuter	Singular	Dual	Plural
Nominative	nirjanatvam	nirjanatve	nirjanatvāni
Vocative	nirjanatva	nirjanatve	nirjanatvāni
Accusative	nirjanatvam	nirjanatve	nirjanatvāni
Instrumental	nirjanatvena	nirjanatvābhyām	nirjanatvaiḥ
Dative	nirjanatvāya	nirjanatvābhyām	nirjanatvebhyaḥ
Ablative	nirjanatvāt	nirjanatvābhyām	nirjanatvebhyaḥ
Genitive	nirjanatvasya	nirjanatvayoḥ	nirjanatvānām
Locative	nirjanatve	nirjanatvayoḥ	nirjanatveṣu

Compound nirjanatva -

Adverb -nirjanatvam -nirjanatvāt