Declension table of ?niśumbhana

Neuter	Singular	Dual	Plural
Nominative	niśumbhanam	niśumbhane	niśumbhanāni
Vocative	niśumbhana	niśumbhane	niśumbhanāni
Accusative	niśumbhanam	niśumbhane	niśumbhanāni
Instrumental	niśumbhanena	niśumbhanābhyām	niśumbhanaiḥ
Dative	niśumbhanāya	niśumbhanābhyām	niśumbhanebhyaḥ
Ablative	niśumbhanāt	niśumbhanābhyām	niśumbhanebhyaḥ
Genitive	niśumbhanasya	niśumbhanayoḥ	niśumbhanānām
Locative	niśumbhane	niśumbhanayoḥ	niśumbhaneṣu

Compound niśumbhana -

Adverb -niśumbhanam -niśumbhanāt