Declension table of ?dhuryāsana

Neuter	Singular	Dual	Plural
Nominative	dhuryāsanam	dhuryāsane	dhuryāsanāni
Vocative	dhuryāsana	dhuryāsane	dhuryāsanāni
Accusative	dhuryāsanam	dhuryāsane	dhuryāsanāni
Instrumental	dhuryāsanena	dhuryāsanābhyām	dhuryāsanaiḥ
Dative	dhuryāsanāya	dhuryāsanābhyām	dhuryāsanebhyaḥ
Ablative	dhuryāsanāt	dhuryāsanābhyām	dhuryāsanebhyaḥ
Genitive	dhuryāsanasya	dhuryāsanayoḥ	dhuryāsanānām
Locative	dhuryāsane	dhuryāsanayoḥ	dhuryāsaneṣu

Compound dhuryāsana -

Adverb -dhuryāsanam -dhuryāsanāt