Declension table of brahmotsava

Masculine	Singular	Dual	Plural
Nominative	brahmotsavaḥ	brahmotsavau	brahmotsavāḥ
Vocative	brahmotsava	brahmotsavau	brahmotsavāḥ
Accusative	brahmotsavam	brahmotsavau	brahmotsavān
Instrumental	brahmotsavena	brahmotsavābhyām	brahmotsavaiḥ brahmotsavebhiḥ
Dative	brahmotsavāya	brahmotsavābhyām	brahmotsavebhyaḥ
Ablative	brahmotsavāt	brahmotsavābhyām	brahmotsavebhyaḥ
Genitive	brahmotsavasya	brahmotsavayoḥ	brahmotsavānām
Locative	brahmotsave	brahmotsavayoḥ	brahmotsaveṣu

Compound brahmotsava -

Adverb -brahmotsavam -brahmotsavāt