Declension table of ?mahākalyāṇaka

Masculine	Singular	Dual	Plural
Nominative	mahākalyāṇakaḥ	mahākalyāṇakau	mahākalyāṇakāḥ
Vocative	mahākalyāṇaka	mahākalyāṇakau	mahākalyāṇakāḥ
Accusative	mahākalyāṇakam	mahākalyāṇakau	mahākalyāṇakān
Instrumental	mahākalyāṇakena	mahākalyāṇakābhyām	mahākalyāṇakaiḥ mahākalyāṇakebhiḥ
Dative	mahākalyāṇakāya	mahākalyāṇakābhyām	mahākalyāṇakebhyaḥ
Ablative	mahākalyāṇakāt	mahākalyāṇakābhyām	mahākalyāṇakebhyaḥ
Genitive	mahākalyāṇakasya	mahākalyāṇakayoḥ	mahākalyāṇakānām
Locative	mahākalyāṇake	mahākalyāṇakayoḥ	mahākalyāṇakeṣu

Compound mahākalyāṇaka -

Adverb -mahākalyāṇakam -mahākalyāṇakāt