Declension table of ?kathāntara

Neuter	Singular	Dual	Plural
Nominative	kathāntaram	kathāntare	kathāntarāṇi
Vocative	kathāntara	kathāntare	kathāntarāṇi
Accusative	kathāntaram	kathāntare	kathāntarāṇi
Instrumental	kathāntareṇa	kathāntarābhyām	kathāntaraiḥ
Dative	kathāntarāya	kathāntarābhyām	kathāntarebhyaḥ
Ablative	kathāntarāt	kathāntarābhyām	kathāntarebhyaḥ
Genitive	kathāntarasya	kathāntarayoḥ	kathāntarāṇām
Locative	kathāntare	kathāntarayoḥ	kathāntareṣu

Compound kathāntara -

Adverb -kathāntaram -kathāntarāt