Declension table of ?udavasāna

Neuter	Singular	Dual	Plural
Nominative	udavasānam	udavasāne	udavasānāni
Vocative	udavasāna	udavasāne	udavasānāni
Accusative	udavasānam	udavasāne	udavasānāni
Instrumental	udavasānena	udavasānābhyām	udavasānaiḥ
Dative	udavasānāya	udavasānābhyām	udavasānebhyaḥ
Ablative	udavasānāt	udavasānābhyām	udavasānebhyaḥ
Genitive	udavasānasya	udavasānayoḥ	udavasānānām
Locative	udavasāne	udavasānayoḥ	udavasāneṣu

Compound udavasāna -

Adverb -udavasānam -udavasānāt