Declension table of ?niṃsāna

Neuter	Singular	Dual	Plural
Nominative	niṃsānam	niṃsāne	niṃsānāni
Vocative	niṃsāna	niṃsāne	niṃsānāni
Accusative	niṃsānam	niṃsāne	niṃsānāni
Instrumental	niṃsānena	niṃsānābhyām	niṃsānaiḥ
Dative	niṃsānāya	niṃsānābhyām	niṃsānebhyaḥ
Ablative	niṃsānāt	niṃsānābhyām	niṃsānebhyaḥ
Genitive	niṃsānasya	niṃsānayoḥ	niṃsānānām
Locative	niṃsāne	niṃsānayoḥ	niṃsāneṣu

Compound niṃsāna -

Adverb -niṃsānam -niṃsānāt