Declension table of ?mahāsvara

Neuter	Singular	Dual	Plural
Nominative	mahāsvaram	mahāsvare	mahāsvarāṇi
Vocative	mahāsvara	mahāsvare	mahāsvarāṇi
Accusative	mahāsvaram	mahāsvare	mahāsvarāṇi
Instrumental	mahāsvareṇa	mahāsvarābhyām	mahāsvaraiḥ
Dative	mahāsvarāya	mahāsvarābhyām	mahāsvarebhyaḥ
Ablative	mahāsvarāt	mahāsvarābhyām	mahāsvarebhyaḥ
Genitive	mahāsvarasya	mahāsvarayoḥ	mahāsvarāṇām
Locative	mahāsvare	mahāsvarayoḥ	mahāsvareṣu

Compound mahāsvara -

Adverb -mahāsvaram -mahāsvarāt