Declension table of ?mahārdraka

Neuter	Singular	Dual	Plural
Nominative	mahārdrakam	mahārdrake	mahārdrakāṇi
Vocative	mahārdraka	mahārdrake	mahārdrakāṇi
Accusative	mahārdrakam	mahārdrake	mahārdrakāṇi
Instrumental	mahārdrakeṇa	mahārdrakābhyām	mahārdrakaiḥ
Dative	mahārdrakāya	mahārdrakābhyām	mahārdrakebhyaḥ
Ablative	mahārdrakāt	mahārdrakābhyām	mahārdrakebhyaḥ
Genitive	mahārdrakasya	mahārdrakayoḥ	mahārdrakāṇām
Locative	mahārdrake	mahārdrakayoḥ	mahārdrakeṣu

Compound mahārdraka -

Adverb -mahārdrakam -mahārdrakāt