Declension table of ?bāndhuka

Neuter	Singular	Dual	Plural
Nominative	bāndhukam	bāndhuke	bāndhukāni
Vocative	bāndhuka	bāndhuke	bāndhukāni
Accusative	bāndhukam	bāndhuke	bāndhukāni
Instrumental	bāndhukena	bāndhukābhyām	bāndhukaiḥ
Dative	bāndhukāya	bāndhukābhyām	bāndhukebhyaḥ
Ablative	bāndhukāt	bāndhukābhyām	bāndhukebhyaḥ
Genitive	bāndhukasya	bāndhukayoḥ	bāndhukānām
Locative	bāndhuke	bāndhukayoḥ	bāndhukeṣu

Compound bāndhuka -

Adverb -bāndhukam -bāndhukāt