Declension table of ?āvasāna

Neuter	Singular	Dual	Plural
Nominative	āvasānam	āvasāne	āvasānāni
Vocative	āvasāna	āvasāne	āvasānāni
Accusative	āvasānam	āvasāne	āvasānāni
Instrumental	āvasānena	āvasānābhyām	āvasānaiḥ
Dative	āvasānāya	āvasānābhyām	āvasānebhyaḥ
Ablative	āvasānāt	āvasānābhyām	āvasānebhyaḥ
Genitive	āvasānasya	āvasānayoḥ	āvasānānām
Locative	āvasāne	āvasānayoḥ	āvasāneṣu

Compound āvasāna -

Adverb -āvasānam -āvasānāt