Declension table of upāsaka

Neuter	Singular	Dual	Plural
Nominative	upāsakam	upāsake	upāsakāni
Vocative	upāsaka	upāsake	upāsakāni
Accusative	upāsakam	upāsake	upāsakāni
Instrumental	upāsakena	upāsakābhyām	upāsakaiḥ
Dative	upāsakāya	upāsakābhyām	upāsakebhyaḥ
Ablative	upāsakāt	upāsakābhyām	upāsakebhyaḥ
Genitive	upāsakasya	upāsakayoḥ	upāsakānām
Locative	upāsake	upāsakayoḥ	upāsakeṣu

Compound upāsaka -

Adverb -upāsakam -upāsakāt