Declension table of mahattva

Neuter	Singular	Dual	Plural
Nominative	mahattvam	mahattve	mahattvāni
Vocative	mahattva	mahattve	mahattvāni
Accusative	mahattvam	mahattve	mahattvāni
Instrumental	mahattvena	mahattvābhyām	mahattvaiḥ
Dative	mahattvāya	mahattvābhyām	mahattvebhyaḥ
Ablative	mahattvāt	mahattvābhyām	mahattvebhyaḥ
Genitive	mahattvasya	mahattvayoḥ	mahattvānām
Locative	mahattve	mahattvayoḥ	mahattveṣu

Compound mahattva -

Adverb -mahattvam -mahattvāt