Declension table of nirvighna

Neuter	Singular	Dual	Plural
Nominative	nirvighnam	nirvighne	nirvighnāni
Vocative	nirvighna	nirvighne	nirvighnāni
Accusative	nirvighnam	nirvighne	nirvighnāni
Instrumental	nirvighnena	nirvighnābhyām	nirvighnaiḥ
Dative	nirvighnāya	nirvighnābhyām	nirvighnebhyaḥ
Ablative	nirvighnāt	nirvighnābhyām	nirvighnebhyaḥ
Genitive	nirvighnasya	nirvighnayoḥ	nirvighnānām
Locative	nirvighne	nirvighnayoḥ	nirvighneṣu

Compound nirvighna -

Adverb -nirvighnam -nirvighnāt