Declension table of ?ullāsana

Neuter	Singular	Dual	Plural
Nominative	ullāsanam	ullāsane	ullāsanāni
Vocative	ullāsana	ullāsane	ullāsanāni
Accusative	ullāsanam	ullāsane	ullāsanāni
Instrumental	ullāsanena	ullāsanābhyām	ullāsanaiḥ
Dative	ullāsanāya	ullāsanābhyām	ullāsanebhyaḥ
Ablative	ullāsanāt	ullāsanābhyām	ullāsanebhyaḥ
Genitive	ullāsanasya	ullāsanayoḥ	ullāsanānām
Locative	ullāsane	ullāsanayoḥ	ullāsaneṣu

Compound ullāsana -

Adverb -ullāsanam -ullāsanāt