Declension table of mahivrata

Masculine	Singular	Dual	Plural
Nominative	mahivrataḥ	mahivratau	mahivratāḥ
Vocative	mahivrata	mahivratau	mahivratāḥ
Accusative	mahivratam	mahivratau	mahivratān
Instrumental	mahivratena	mahivratābhyām	mahivrataiḥ mahivratebhiḥ
Dative	mahivratāya	mahivratābhyām	mahivratebhyaḥ
Ablative	mahivratāt	mahivratābhyām	mahivratebhyaḥ
Genitive	mahivratasya	mahivratayoḥ	mahivratānām
Locative	mahivrate	mahivratayoḥ	mahivrateṣu

Compound mahivrata -

Adverb -mahivratam -mahivratāt