Declension table of ?mahāsana

Neuter	Singular	Dual	Plural
Nominative	mahāsanam	mahāsane	mahāsanāni
Vocative	mahāsana	mahāsane	mahāsanāni
Accusative	mahāsanam	mahāsane	mahāsanāni
Instrumental	mahāsanena	mahāsanābhyām	mahāsanaiḥ
Dative	mahāsanāya	mahāsanābhyām	mahāsanebhyaḥ
Ablative	mahāsanāt	mahāsanābhyām	mahāsanebhyaḥ
Genitive	mahāsanasya	mahāsanayoḥ	mahāsanānām
Locative	mahāsane	mahāsanayoḥ	mahāsaneṣu

Compound mahāsana -

Adverb -mahāsanam -mahāsanāt