Declension table of ?mahādhanus

Masculine	Singular	Dual	Plural
Nominative	mahādhanuḥ	mahādhanuṣau	mahādhanuṣaḥ
Vocative	mahādhanuḥ	mahādhanuṣau	mahādhanuṣaḥ
Accusative	mahādhanuṣam	mahādhanuṣau	mahādhanuṣaḥ
Instrumental	mahādhanuṣā	mahādhanurbhyām	mahādhanurbhiḥ
Dative	mahādhanuṣe	mahādhanurbhyām	mahādhanurbhyaḥ
Ablative	mahādhanuṣaḥ	mahādhanurbhyām	mahādhanurbhyaḥ
Genitive	mahādhanuṣaḥ	mahādhanuṣoḥ	mahādhanuṣām
Locative	mahādhanuṣi	mahādhanuṣoḥ	mahādhanuḥṣu

Compound mahādhanus -

Adverb -mahādhanus