Declension table of ?mahākālapura

Neuter	Singular	Dual	Plural
Nominative	mahākālapuram	mahākālapure	mahākālapurāṇi
Vocative	mahākālapura	mahākālapure	mahākālapurāṇi
Accusative	mahākālapuram	mahākālapure	mahākālapurāṇi
Instrumental	mahākālapureṇa	mahākālapurābhyām	mahākālapuraiḥ
Dative	mahākālapurāya	mahākālapurābhyām	mahākālapurebhyaḥ
Ablative	mahākālapurāt	mahākālapurābhyām	mahākālapurebhyaḥ
Genitive	mahākālapurasya	mahākālapurayoḥ	mahākālapurāṇām
Locative	mahākālapure	mahākālapurayoḥ	mahākālapureṣu

Compound mahākālapura -

Adverb -mahākālapuram -mahākālapurāt