Declension table of ?tumbura

Masculine	Singular	Dual	Plural
Nominative	tumburaḥ	tumburau	tumburāḥ
Vocative	tumbura	tumburau	tumburāḥ
Accusative	tumburam	tumburau	tumburān
Instrumental	tumbureṇa	tumburābhyām	tumburaiḥ tumburebhiḥ
Dative	tumburāya	tumburābhyām	tumburebhyaḥ
Ablative	tumburāt	tumburābhyām	tumburebhyaḥ
Genitive	tumburasya	tumburayoḥ	tumburāṇām
Locative	tumbure	tumburayoḥ	tumbureṣu

Compound tumbura -

Adverb -tumburam -tumburāt