Declension table of ?poṣadhotsava

Masculine	Singular	Dual	Plural
Nominative	poṣadhotsavaḥ	poṣadhotsavau	poṣadhotsavāḥ
Vocative	poṣadhotsava	poṣadhotsavau	poṣadhotsavāḥ
Accusative	poṣadhotsavam	poṣadhotsavau	poṣadhotsavān
Instrumental	poṣadhotsavena	poṣadhotsavābhyām	poṣadhotsavaiḥ poṣadhotsavebhiḥ
Dative	poṣadhotsavāya	poṣadhotsavābhyām	poṣadhotsavebhyaḥ
Ablative	poṣadhotsavāt	poṣadhotsavābhyām	poṣadhotsavebhyaḥ
Genitive	poṣadhotsavasya	poṣadhotsavayoḥ	poṣadhotsavānām
Locative	poṣadhotsave	poṣadhotsavayoḥ	poṣadhotsaveṣu

Compound poṣadhotsava -

Adverb -poṣadhotsavam -poṣadhotsavāt