Declension table of asana

Masculine	Singular	Dual	Plural
Nominative	asanaḥ	asanau	asanāḥ
Vocative	asana	asanau	asanāḥ
Accusative	asanam	asanau	asanān
Instrumental	asanena	asanābhyām	asanaiḥ asanebhiḥ
Dative	asanāya	asanābhyām	asanebhyaḥ
Ablative	asanāt	asanābhyām	asanebhyaḥ
Genitive	asanasya	asanayoḥ	asanānām
Locative	asane	asanayoḥ	asaneṣu

Compound asana -

Adverb -asanam -asanāt