Declension table of yāmuna

Neuter	Singular	Dual	Plural
Nominative	yāmunam	yāmune	yāmunāni
Vocative	yāmuna	yāmune	yāmunāni
Accusative	yāmunam	yāmune	yāmunāni
Instrumental	yāmunena	yāmunābhyām	yāmunaiḥ
Dative	yāmunāya	yāmunābhyām	yāmunebhyaḥ
Ablative	yāmunāt	yāmunābhyām	yāmunebhyaḥ
Genitive	yāmunasya	yāmunayoḥ	yāmunānām
Locative	yāmune	yāmunayoḥ	yāmuneṣu

Compound yāmuna -

Adverb -yāmunam -yāmunāt