Declension table of ?mahāśaṅkha

Masculine	Singular	Dual	Plural
Nominative	mahāśaṅkhaḥ	mahāśaṅkhau	mahāśaṅkhāḥ
Vocative	mahāśaṅkha	mahāśaṅkhau	mahāśaṅkhāḥ
Accusative	mahāśaṅkham	mahāśaṅkhau	mahāśaṅkhān
Instrumental	mahāśaṅkhena	mahāśaṅkhābhyām	mahāśaṅkhaiḥ mahāśaṅkhebhiḥ
Dative	mahāśaṅkhāya	mahāśaṅkhābhyām	mahāśaṅkhebhyaḥ
Ablative	mahāśaṅkhāt	mahāśaṅkhābhyām	mahāśaṅkhebhyaḥ
Genitive	mahāśaṅkhasya	mahāśaṅkhayoḥ	mahāśaṅkhānām
Locative	mahāśaṅkhe	mahāśaṅkhayoḥ	mahāśaṅkheṣu

Compound mahāśaṅkha -

Adverb -mahāśaṅkham -mahāśaṅkhāt