Declension table of ?sundarapura

Neuter	Singular	Dual	Plural
Nominative	sundarapuram	sundarapure	sundarapurāṇi
Vocative	sundarapura	sundarapure	sundarapurāṇi
Accusative	sundarapuram	sundarapure	sundarapurāṇi
Instrumental	sundarapureṇa	sundarapurābhyām	sundarapuraiḥ
Dative	sundarapurāya	sundarapurābhyām	sundarapurebhyaḥ
Ablative	sundarapurāt	sundarapurābhyām	sundarapurebhyaḥ
Genitive	sundarapurasya	sundarapurayoḥ	sundarapurāṇām
Locative	sundarapure	sundarapurayoḥ	sundarapureṣu

Compound sundarapura -

Adverb -sundarapuram -sundarapurāt