Declension table of ?nirvāsana

Neuter	Singular	Dual	Plural
Nominative	nirvāsanam	nirvāsane	nirvāsanāni
Vocative	nirvāsana	nirvāsane	nirvāsanāni
Accusative	nirvāsanam	nirvāsane	nirvāsanāni
Instrumental	nirvāsanena	nirvāsanābhyām	nirvāsanaiḥ
Dative	nirvāsanāya	nirvāsanābhyām	nirvāsanebhyaḥ
Ablative	nirvāsanāt	nirvāsanābhyām	nirvāsanebhyaḥ
Genitive	nirvāsanasya	nirvāsanayoḥ	nirvāsanānām
Locative	nirvāsane	nirvāsanayoḥ	nirvāsaneṣu

Compound nirvāsana -

Adverb -nirvāsanam -nirvāsanāt