Declension table of mahādāna

Masculine	Singular	Dual	Plural
Nominative	mahādānaḥ	mahādānau	mahādānāḥ
Vocative	mahādāna	mahādānau	mahādānāḥ
Accusative	mahādānam	mahādānau	mahādānān
Instrumental	mahādānena	mahādānābhyām	mahādānaiḥ mahādānebhiḥ
Dative	mahādānāya	mahādānābhyām	mahādānebhyaḥ
Ablative	mahādānāt	mahādānābhyām	mahādānebhyaḥ
Genitive	mahādānasya	mahādānayoḥ	mahādānānām
Locative	mahādāne	mahādānayoḥ	mahādāneṣu

Compound mahādāna -

Adverb -mahādānam -mahādānāt