Declension table of ?mahatkatha

Neuter	Singular	Dual	Plural
Nominative	mahatkatham	mahatkathe	mahatkathāni
Vocative	mahatkatha	mahatkathe	mahatkathāni
Accusative	mahatkatham	mahatkathe	mahatkathāni
Instrumental	mahatkathena	mahatkathābhyām	mahatkathaiḥ
Dative	mahatkathāya	mahatkathābhyām	mahatkathebhyaḥ
Ablative	mahatkathāt	mahatkathābhyām	mahatkathebhyaḥ
Genitive	mahatkathasya	mahatkathayoḥ	mahatkathānām
Locative	mahatkathe	mahatkathayoḥ	mahatkatheṣu

Compound mahatkatha -

Adverb -mahatkatham -mahatkathāt