Declension table of ?nirgahana

Neuter	Singular	Dual	Plural
Nominative	nirgahanam	nirgahane	nirgahanāni
Vocative	nirgahana	nirgahane	nirgahanāni
Accusative	nirgahanam	nirgahane	nirgahanāni
Instrumental	nirgahanena	nirgahanābhyām	nirgahanaiḥ
Dative	nirgahanāya	nirgahanābhyām	nirgahanebhyaḥ
Ablative	nirgahanāt	nirgahanābhyām	nirgahanebhyaḥ
Genitive	nirgahanasya	nirgahanayoḥ	nirgahanānām
Locative	nirgahane	nirgahanayoḥ	nirgahaneṣu

Compound nirgahana -

Adverb -nirgahanam -nirgahanāt