Declension table of mahāpātra

Neuter	Singular	Dual	Plural
Nominative	mahāpātram	mahāpātre	mahāpātrāṇi
Vocative	mahāpātra	mahāpātre	mahāpātrāṇi
Accusative	mahāpātram	mahāpātre	mahāpātrāṇi
Instrumental	mahāpātreṇa	mahāpātrābhyām	mahāpātraiḥ
Dative	mahāpātrāya	mahāpātrābhyām	mahāpātrebhyaḥ
Ablative	mahāpātrāt	mahāpātrābhyām	mahāpātrebhyaḥ
Genitive	mahāpātrasya	mahāpātrayoḥ	mahāpātrāṇām
Locative	mahāpātre	mahāpātrayoḥ	mahāpātreṣu

Compound mahāpātra -

Adverb -mahāpātram -mahāpātrāt